r11579: syncing up perf counter code cfrom trunk

(This used to be commit 59c00924b67aa3d37a933731a56d03963ec7f1b5)

9 files changed, 1384 insertions, 0 deletions

diff --git a/examples/perfcounter/Makefile b/examples/perfcounter/Makefile
new file mode 100644
index 0000000000..07bc7657c9
--- /dev/null
+++ b/examples/perfcounter/Makefile
@@ -0,0 +1,38 @@
+#
+# Copyright (C) Marcin Krzysztof Porwit    2005
+#  
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+# 
+
+SAMBA_SRC_DIR=../../source
+TDB_SRC_DIR=$(SAMBA_SRC_DIR)/tdb
+
+CFLAGS = -g -I$(SAMBA_SRC_DIR)/include -I$(TDB_SRC_DIR)
+CC = gcc
+
+PROGS = perfcount
+TDB_OBJ = $(TDB_SRC_DIR)/tdb.o $(TDB_SRC_DIR)/spinlock.o $(TDB_SRC_DIR)/tdbback.o
+PERF_WRITER_OBJ = perf_writer.o perf_writer_mem.o perf_writer_util.o perf_writer_cpu.o perf_writer_process.o perf_writer_disk.o
+
+default: $(PROGS)
+
+$(TDB_OBJ):
+	cd $(TDB_SRC_DIR) && make
+
+perfcount: $(PERF_WRITER_OBJ) $(TDB_OBJ)
+	$(CC) $(CFLAGS) -o perfcount $(PERF_WRITER_OBJ) $(TDB_OBJ)
+
+clean:
+	rm -f $(PROGS) *.o *~ *% core
diff --git a/examples/perfcounter/perf.h b/examples/perfcounter/perf.h
new file mode 100644
index 0000000000..7279e78831
--- /dev/null
+++ b/examples/perfcounter/perf.h
@@ -0,0 +1,196 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __PERF_H__
+#define __PERF_H__
+
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <limits.h>
+#include "tdb.h"
+#include <rpc_perfcount_defs.h>
+#include <sys/statfs.h>
+#include <sys/times.h>
+#include <sys/sysinfo.h>
+
+#define NUM_COUNTERS 10
+
+#define NAME_LEN 256
+#define HELP_LEN 1024
+
+#define PERF_OBJECT 0
+#define PERF_INSTANCE 1
+#define PERF_COUNTER 2
+
+#define FALSE 0
+#define TRUE !FALSE
+
+#define PROC_BUF 256
+#define LARGE_BUF 16384
+
+typedef struct perf_counter
+{
+    int index;
+    char name[NAME_LEN];
+    char help[HELP_LEN];
+    char relationships[NAME_LEN];
+    unsigned int counter_type;
+    int record_type;
+} PerfCounter;
+
+typedef struct mem_data
+{
+    unsigned int availPhysKb;
+    unsigned int availSwapKb;
+    unsigned int totalPhysKb;
+    unsigned int totalSwapKb;
+} MemData;
+
+typedef struct mem_info
+{
+    PerfCounter memObjDesc;
+    PerfCounter availPhysKb;
+    PerfCounter availSwapKb;
+    PerfCounter totalPhysKb;
+    PerfCounter totalSwapKb;
+    MemData *data;
+} MemInfo;
+
+typedef struct cpu_data
+{
+    unsigned long long user;
+    unsigned long long nice;
+    unsigned long long system;
+    unsigned long long idle;
+} CPUData;
+
+typedef struct cpu_info
+{
+    unsigned int numCPUs;
+    PerfCounter cpuObjDesc;
+    PerfCounter userCPU;
+    PerfCounter niceCPU;
+    PerfCounter systemCPU;
+    PerfCounter idleCPU;
+    CPUData *data;
+} CPUInfo;
+
+typedef struct disk_meta_data
+{
+	char name[NAME_LEN];
+	char mountpoint[NAME_LEN];
+} DiskMetaData;
+
+typedef struct disk_data
+{
+	unsigned long long freeMegs;
+	unsigned int writesPerSec;
+	unsigned int readsPerSec;
+} DiskData;
+
+typedef struct disk_info
+{
+	unsigned int numDisks;
+	DiskMetaData *mdata;
+	PerfCounter diskObjDesc;
+	PerfCounter freeMegs;
+	PerfCounter writesPerSec;
+	PerfCounter readsPerSec;
+	DiskData *data;
+} DiskInfo;
+
+typedef struct process_data
+{
+	unsigned int runningProcessCount;
+} ProcessData;
+
+typedef struct process_info
+{
+	PerfCounter processObjDesc;
+	PerfCounter runningProcessCount;
+	ProcessData *data;
+} ProcessInfo;
+
+typedef struct perf_data_block
+{
+	unsigned int counter_id;
+	unsigned int num_counters;
+	unsigned int NumObjectTypes;
+	unsigned long long PerfTime;
+	unsigned long long PerfFreq;
+	unsigned long long PerfTime100nSec;
+	MemInfo memInfo;
+	CPUInfo cpuInfo;
+	ProcessInfo processInfo;
+	DiskInfo diskInfo;
+} PERF_DATA_BLOCK;
+
+typedef struct runtime_settings
+{
+    /* Runtime flags */
+    int dflag;
+    /* DB path names */
+    char dbDir[PATH_MAX];
+    char nameFile[PATH_MAX];
+    char counterFile[PATH_MAX];
+    /* TDB context */
+    TDB_CONTEXT *cnames;
+    TDB_CONTEXT *cdata;
+} RuntimeSettings;
+
+/* perf_writer_ng_util.c function prototypes */
+void fatal(char *msg);
+void add_key(TDB_CONTEXT *db, char *keystring, char *datastring, int flags);
+void add_key_raw(TDB_CONTEXT *db, char *keystring, void *datastring, size_t datasize, int flags);
+void make_key(char *buf, int buflen, int key_part1, char *key_part2);
+void parse_flags(RuntimeSettings *rt, int argc, char **argv);
+void setup_file_paths(RuntimeSettings *rt);
+void daemonize(RuntimeSettings *rt);
+
+/* perf_writer_ng_mem.c function prototypes */
+void get_meminfo(PERF_DATA_BLOCK *data);
+void init_memdata_desc(PERF_DATA_BLOCK *data);
+void init_memdata(PERF_DATA_BLOCK *data);
+void output_mem_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt);
+void output_meminfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags);
+void init_perf_counter(PerfCounter *counter, PerfCounter *parent, unsigned int index, char *name, char *help, int counter_type, int record_type);
+
+/* perf_writer_ng_cpu.c function prototypes */
+unsigned long long get_cpufreq();
+void init_cpudata_desc(PERF_DATA_BLOCK *data);
+void get_cpuinfo(PERF_DATA_BLOCK *data);
+void init_cpu_data(PERF_DATA_BLOCK *data);
+void output_cpu_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt);
+void output_cpuinfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags);
+
+#endif /* __PERF_H__ */
diff --git a/examples/perfcounter/perf_writer.c b/examples/perfcounter/perf_writer.c
new file mode 100644
index 0000000000..04127f5621
--- /dev/null
+++ b/examples/perfcounter/perf_writer.c
@@ -0,0 +1,214 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+sig_atomic_t keep_running = TRUE;
+
+/* allocates memory and gets numCPUs, total memory, and PerfFreq, number of disks... */
+void get_constants(PERF_DATA_BLOCK *data)
+{
+    data->cpuInfo.numCPUs = sysconf(_SC_NPROCESSORS_ONLN);
+    data->PerfFreq = sysconf(_SC_CLK_TCK);
+    init_mem_data(data);
+    init_cpu_data(data);
+    init_process_data(data);
+    init_disk_data(data);
+
+    return;
+}
+
+void output_num_instances(PerfCounter obj, int numInst, RuntimeSettings rt)
+{
+    char key[NAME_LEN];
+    char sdata[NAME_LEN];
+
+    make_key(key, NAME_LEN, obj.index, "inst");
+    memset(sdata, 0, NAME_LEN);
+    sprintf(sdata, "%d", numInst);
+    add_key(rt.cnames, key, sdata, TDB_INSERT);
+
+    return;
+}
+
+void output_perf_desc(PerfCounter counter, RuntimeSettings rt)
+{
+    char key[NAME_LEN];
+    char sdata[NAME_LEN];
+
+    /* First insert the counter name */
+    make_key(key, NAME_LEN, counter.index, NULL);
+    add_key(rt.cnames, key, counter.name, TDB_INSERT);
+    /* Add the help string */
+    make_key(key, NAME_LEN, counter.index + 1, NULL);
+    add_key(rt.cnames, key, counter.help, TDB_INSERT);
+    /* Add the relationships */
+    make_key(key, NAME_LEN, counter.index, "rel");
+    add_key(rt.cnames, key, counter.relationships, TDB_INSERT);
+    /* Add type data if not PERF_OBJECT or PERF_INSTANCE */
+    if(counter.record_type == PERF_COUNTER)
+    {
+	make_key(key, NAME_LEN, counter.index, "type");
+	memset(sdata, 0, NAME_LEN);
+	sprintf(sdata, "%d", counter.counter_type);
+	add_key(rt.cnames, key, sdata, TDB_INSERT);
+    }
+
+    return;
+}
+
+void initialize(PERF_DATA_BLOCK *data, RuntimeSettings *rt, int argc, char **argv)
+{
+    memset(data, 0, sizeof(*data));
+    memset(rt, 0, sizeof(*data));
+
+    parse_flags(rt, argc, argv);
+    setup_file_paths(rt);
+
+    get_constants(data);
+
+    if(rt->dflag == TRUE)
+	daemonize(rt);
+
+    output_mem_desc(data, *rt);
+    output_cpu_desc(data, *rt);
+    output_process_desc(data, *rt);
+    output_disk_desc(data, *rt);
+
+    return;
+}
+
+void refresh_perf_data_block(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+    data->PerfTime100nSec = 0;
+    get_meminfo(data);
+    get_cpuinfo(data);
+    get_processinfo(data);
+    get_diskinfo(data);
+    return;
+}
+
+void output_perf_counter(PerfCounter counter, unsigned long long data,
+			 RuntimeSettings rt, int tdb_flags)
+{
+    char key[NAME_LEN];
+    char sdata[NAME_LEN];
+    unsigned int size_mask;
+
+    make_key(key, NAME_LEN, counter.index, NULL);
+    memset(sdata, 0, NAME_LEN);
+
+    size_mask = counter.counter_type & PERF_SIZE_VARIABLE_LEN;
+
+    if(size_mask == PERF_SIZE_DWORD)
+	sprintf(sdata, "%d", (unsigned int)data);
+    else if(size_mask == PERF_SIZE_LARGE)
+	sprintf(sdata, "%Lu", data);
+
+    add_key(rt.cdata, key, sdata, tdb_flags);
+
+    return;
+}
+
+void output_perf_instance(int parentObjInd,
+			  int instanceInd,
+			  void *instData,
+			  size_t dsize,
+			  char *name,
+			  RuntimeSettings rt,
+			  int tdb_flags)
+{
+    char key[NAME_LEN];
+    char sdata[NAME_LEN];
+
+    memset(key, 0, NAME_LEN);
+    sprintf(key, "%di%d", parentObjInd, instanceInd);
+    add_key_raw(rt.cdata, key, instData, dsize, tdb_flags);
+
+    /* encode name */
+    memset(key, 0, NAME_LEN);
+    sprintf(key, "%di%dname", parentObjInd, instanceInd);
+    add_key(rt.cnames, key, name, tdb_flags);
+
+    return;
+}
+
+void output_global_data(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+    int i;
+    char key[NAME_LEN];
+    char sdata[NAME_LEN];
+    
+     /* Initialize BaseIndex */
+    make_key(key, NAME_LEN, 1, NULL);
+    memset(sdata, 0, NAME_LEN);
+    sprintf(sdata, "%d", data->num_counters);
+    add_key(rt.cnames, key, sdata, tdb_flags);
+    /* Initialize PerfTime, PerfFreq and PerfTime100nSec */
+    memset(sdata, 0, NAME_LEN);
+    make_key(key, NAME_LEN, 0, "PerfTime");
+    sprintf(sdata, "%Lu", data->PerfTime);
+    add_key(rt.cdata, key, sdata, tdb_flags);
+    make_key(key, NAME_LEN, 0, "PerfTime100nSec");
+    memset(sdata, 0, NAME_LEN);
+    sprintf(sdata, "%Lu", data->PerfTime100nSec);
+    add_key(rt.cdata, key, sdata, tdb_flags);
+    memset(sdata, 0, NAME_LEN);
+    make_key(key, NAME_LEN, 0, "PerfFreq");
+    sprintf(sdata, "%Lu", data->PerfFreq);
+    add_key(rt.cnames, key, sdata, tdb_flags);
+
+    return;
+}
+
+void output_perf_data_block(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+    output_global_data(data, rt, tdb_flags);
+    output_meminfo(data, rt, tdb_flags);
+    output_cpuinfo(data, rt, tdb_flags);
+    output_processinfo(data, rt, tdb_flags);
+    output_diskinfo(data, rt, tdb_flags);
+    return;
+}
+
+void update_counters(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+    refresh_perf_data_block(data, rt);
+    output_perf_data_block(data, rt, TDB_REPLACE);
+
+    return;
+}
+
+int main(int argc, char **argv)
+{
+    PERF_DATA_BLOCK data;
+    RuntimeSettings rt;
+
+    initialize(&data, &rt, argc, argv);
+
+    while(keep_running)
+    {
+	update_counters(&data, rt);
+	sleep(1);
+    }
+    
+    return 0;
+}
diff --git a/examples/perfcounter/perf_writer_cpu.c b/examples/perfcounter/perf_writer_cpu.c
new file mode 100644
index 0000000000..7786c9415e
--- /dev/null
+++ b/examples/perfcounter/perf_writer_cpu.c
@@ -0,0 +1,190 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+void init_cpudata_desc(PERF_DATA_BLOCK *data)
+{
+    init_perf_counter(&(data->cpuInfo.cpuObjDesc),
+		      &(data->cpuInfo.cpuObjDesc),
+		      get_counter_id(data),
+		      "Processor",
+		      "The Processor object consists of counters that describe the behavior of the CPU.",
+		      0,
+		      PERF_OBJECT);
+    init_perf_counter(&(data->cpuInfo.userCPU),
+		      &(data->cpuInfo.cpuObjDesc),
+		      get_counter_id(data),
+		      "\% User CPU Utilization",
+		      "\% User CPU Utilization is the percentage of the CPU used by  processes executing user code.",
+		      PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_TIMER_100NS | PERF_DELTA_COUNTER | PERF_DISPLAY_PERCENT,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->cpuInfo.systemCPU),
+		      &(data->cpuInfo.cpuObjDesc),
+		      get_counter_id(data),
+		      "\% System CPU Utilization",
+		      "\% System CPU Utilization is the percentage of the CPU used by processes doing system calls.",
+		      PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_TIMER_100NS | PERF_DELTA_COUNTER | PERF_DISPLAY_PERCENT,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->cpuInfo.niceCPU),
+		      &(data->cpuInfo.cpuObjDesc),
+		      get_counter_id(data),
+		      "\% Nice CPU Utilization",
+		      "\% Nice CPU Utilization is the percentage of the CPU used by processes running in nice mode.",
+		      PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_TIMER_100NS | PERF_DELTA_COUNTER | PERF_DISPLAY_NOSHOW,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->cpuInfo.idleCPU),
+		      &(data->cpuInfo.cpuObjDesc),
+		      get_counter_id(data),
+		      "\% Idle CPU",
+		      "\% Idle CPU is the percentage of the CPU not doing any work.",
+		      PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_TIMER_100NS | PERF_DELTA_COUNTER | PERF_DISPLAY_NOSHOW,
+		      PERF_COUNTER);
+
+    return;
+}
+
+void get_cpuinfo(PERF_DATA_BLOCK *data)
+{
+    int num, i;
+    unsigned int cpuid;
+    char buf[PROC_BUF];
+    static FILE *fp = NULL;
+
+    if(!fp)
+    {
+	if(!(fp = fopen("/proc/stat", "r")))
+	{
+	    perror("get_cpuinfo: fopen");
+	    exit(1);
+	}
+    }
+
+    rewind(fp);
+    fflush(fp);
+
+    /* Read in the first line and discard it -- that has the CPU summary */
+    if(!fgets(buf, sizeof(buf), fp))
+    {
+	perror("get_cpuinfo: fgets");
+	exit(1);
+    }
+    for(i = 0; i < data->cpuInfo.numCPUs; i++)
+    {
+	if(!fgets(buf, sizeof(buf), fp))
+	{
+	    perror("get_cpuinfo: fgets");
+	    exit(1);
+	}
+	num = sscanf(buf, "cpu%u %Lu %Lu %Lu %Lu",
+		     &cpuid,
+		     &data->cpuInfo.data[i].user,
+		     &data->cpuInfo.data[i].nice,
+		     &data->cpuInfo.data[i].system,
+		     &data->cpuInfo.data[i].idle);
+	if(i != cpuid)
+	{
+	    perror("get_cpuinfo: /proc/stat inconsistent?");
+	    exit(1);
+	}
+	/*
+	  Alternate way of doing things:
+	  struct tms buffer;
+	  data->PerfTime100nSec = times(&buffer);
+	*/
+	data->PerfTime100nSec += data->cpuInfo.data[i].user +
+	    data->cpuInfo.data[i].nice +
+	    data->cpuInfo.data[i].system +
+	    data->cpuInfo.data[i].idle;
+    }
+    data->PerfTime100nSec /= data->cpuInfo.numCPUs;
+    return;
+}
+
+void init_cpu_data(PERF_DATA_BLOCK *data)
+{
+    data->cpuInfo.data = calloc(data->cpuInfo.numCPUs, sizeof(*data->cpuInfo.data));
+    if(!data->cpuInfo.data)
+    {
+	perror("init_cpu_data: out of memory");
+	exit(1);
+    }
+
+    init_cpudata_desc(data);
+
+    get_cpuinfo(data);
+
+    return;
+}   
+
+void output_cpu_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+    output_perf_desc(data->cpuInfo.cpuObjDesc, rt);
+    output_perf_desc(data->cpuInfo.userCPU, rt);
+    output_perf_desc(data->cpuInfo.niceCPU, rt);
+    output_perf_desc(data->cpuInfo.systemCPU, rt);
+    output_perf_desc(data->cpuInfo.idleCPU, rt);
+    if(data->cpuInfo.numCPUs > 1)
+	    output_num_instances(data->cpuInfo.cpuObjDesc, data->cpuInfo.numCPUs + 1, rt);
+
+    return;
+}
+
+void output_cpuinfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+    int i;
+    char buf[NAME_LEN];
+
+    output_perf_counter(data->cpuInfo.userCPU,
+			data->cpuInfo.data[0].user,
+			rt, tdb_flags);
+    output_perf_counter(data->cpuInfo.systemCPU,
+			data->cpuInfo.data[0].system,
+			rt, tdb_flags);
+    output_perf_counter(data->cpuInfo.niceCPU,
+			data->cpuInfo.data[0].nice,
+			rt, tdb_flags);
+    output_perf_counter(data->cpuInfo.idleCPU,
+			data->cpuInfo.data[0].idle,
+			rt, tdb_flags);
+    if(data->cpuInfo.numCPUs > 1)
+      {
+	      for(i = 0; i < data->cpuInfo.numCPUs; i++)
+	      {
+		      memset(buf, 0, NAME_LEN);
+		      sprintf(buf, "cpu%d", i);
+		      output_perf_instance(data->cpuInfo.cpuObjDesc.index,
+					   i,
+					   (void *)&(data->cpuInfo.data[i]),
+					   sizeof(data->cpuInfo.data[i]),
+					   buf, rt, tdb_flags);
+	      }
+	      
+	      memset(buf, 0, NAME_LEN);
+	      sprintf(buf, "_Total");
+	      output_perf_instance(data->cpuInfo.cpuObjDesc.index,
+				   i,
+				   (void *)&(data->cpuInfo.data[i]),
+				   sizeof(data->cpuInfo.data[i]),
+				   buf, rt, tdb_flags);
+      }
+    return;
+}
diff --git a/examples/perfcounter/perf_writer_disk.c b/examples/perfcounter/perf_writer_disk.c
new file mode 100644
index 0000000000..b2b4c9690b
--- /dev/null
+++ b/examples/perfcounter/perf_writer_disk.c
@@ -0,0 +1,225 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+void init_diskdata_desc(PERF_DATA_BLOCK *data)
+{
+	init_perf_counter(&(data->diskInfo.diskObjDesc),
+			  &(data->diskInfo.diskObjDesc),
+			  get_counter_id(data),
+			  "Logical Disk",
+			  "The Logical Disk object consists of counters that show information about disks.",
+			  0,
+			  PERF_OBJECT);
+	init_perf_counter(&(data->diskInfo.freeMegs),
+			  &(data->diskInfo.diskObjDesc),
+			  get_counter_id(data),
+			  "Megabytes Free",
+			  "The amount of available disk space, in megabytes.",
+			  PERF_SIZE_LARGE | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
+			  PERF_COUNTER);
+	init_perf_counter(&(data->diskInfo.writesPerSec),
+			  &(data->diskInfo.diskObjDesc),
+			  get_counter_id(data),
+			  "Writes/sec",
+			  "The number of writes per second to that disk.",
+			  PERF_SIZE_DWORD | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_DELTA_COUNTER | PERF_DISPLAY_PER_SEC,
+			  PERF_COUNTER);
+	init_perf_counter(&(data->diskInfo.readsPerSec),
+			  &(data->diskInfo.diskObjDesc),
+			  get_counter_id(data),
+			  "Reads/sec",
+			  "The number of reads of that disk per second.",
+			  PERF_SIZE_DWORD | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_DELTA_COUNTER | PERF_DISPLAY_PER_SEC,
+			  PERF_COUNTER);
+
+	return;
+}
+void init_num_disks(PERF_DATA_BLOCK *data)
+{
+	FILE *mtab;
+	char buf[PROC_BUF];
+	char *start, *stop;
+	int i = 0, num;
+
+	if(!(mtab = fopen("/etc/mtab", "r")))
+	{
+		perror("init_disk_names: fopen");
+		exit(1);
+	}
+
+	rewind(mtab);
+	fflush(mtab);
+
+	while(fgets(buf, sizeof(buf), mtab))
+	{
+		if(start = strstr(buf, "/dev/"))
+		{
+			if(start = strstr(start, "da"))
+			{
+				i++;
+			}
+		}
+	}
+
+	data->diskInfo.numDisks = i;
+	fclose(mtab);
+
+	return;
+}
+	
+void init_disk_names(PERF_DATA_BLOCK *data)
+{
+	FILE *mtab;
+	char buf[PROC_BUF];
+	char *start, *stop;
+	int i = 0, num;
+
+	if(!(mtab = fopen("/etc/mtab", "r")))
+	{
+		perror("init_disk_names: fopen");
+		exit(1);
+	}
+
+	rewind(mtab);
+	fflush(mtab);
+
+	while(fgets(buf, sizeof(buf), mtab))
+	{
+		if(start = strstr(buf, "/dev/"))
+		{
+			if(start = strstr(start, "da"))
+			{
+				start -=1;
+				stop = strstr(start, " ");
+				memcpy(data->diskInfo.mdata[i].name, start, stop - start);
+				start = stop +1;
+				stop = strstr(start, " ");
+				memcpy(data->diskInfo.mdata[i].mountpoint, start, stop - start);
+				i++;
+			}
+		}
+	}
+
+	fclose(mtab);
+
+	return;
+}
+
+void get_diskinfo(PERF_DATA_BLOCK *data)
+{
+	int i;
+	DiskData *p;
+	struct statfs statfsbuf;
+	int status, num;
+	char buf[LARGE_BUF], *start;
+	FILE *diskstats;
+	long reads, writes, discard;
+
+	diskstats = fopen("/proc/diskstats", "r");
+	rewind(diskstats);
+	fflush(diskstats);
+	status = fread(buf, sizeof(char), LARGE_BUF, diskstats);
+	fclose(diskstats);
+
+	for(i = 0; i < data->diskInfo.numDisks; i++)
+	{
+		p = &(data->diskInfo.data[i]);
+		status = statfs(data->diskInfo.mdata[i].mountpoint, &statfsbuf);
+		p->freeMegs = (statfsbuf.f_bfree*statfsbuf.f_bsize)/1048576;
+		start = strstr(buf, data->diskInfo.mdata[i].name);
+		start += strlen(data->diskInfo.mdata[i].name) + 1;
+		num = sscanf(start, "%u %u %u %u",
+			     &reads,
+			     &discard, 
+			     &writes, 
+			     &discard);
+		p->writesPerSec = writes;
+		p->readsPerSec = reads;
+		fprintf(stderr, "%s:\t%u\t%u\n",
+			data->diskInfo.mdata[i].mountpoint,
+			reads, writes);
+	}
+	return;
+}
+void init_disk_data(PERF_DATA_BLOCK *data)
+{
+	init_diskdata_desc(data);
+	
+	init_num_disks(data);
+
+	data->diskInfo.mdata = calloc(data->diskInfo.numDisks, sizeof(DiskMetaData));
+	if(!data->diskInfo.mdata)
+	{
+		fatal("init_disk_data: out of memory");
+	}
+
+	init_disk_names(data);
+
+	data->diskInfo.data = calloc(data->diskInfo.numDisks, sizeof(DiskData));
+	if(!data->diskInfo.data)
+	{
+		fatal("init_disk_data: out of memory");
+	}
+
+	get_diskinfo(data);
+
+	return;
+}
+
+void output_disk_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+	output_perf_desc(data->diskInfo.diskObjDesc, rt);
+	output_perf_desc(data->diskInfo.freeMegs, rt);
+	output_perf_desc(data->diskInfo.writesPerSec, rt);
+	output_perf_desc(data->diskInfo.readsPerSec, rt);
+	output_num_instances(data->diskInfo.diskObjDesc, data->diskInfo.numDisks, rt);
+
+	return;
+}
+
+void output_diskinfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+	int i;
+	
+	output_perf_counter(data->diskInfo.freeMegs,
+			    data->diskInfo.data[0].freeMegs,
+			    rt, tdb_flags);
+	output_perf_counter(data->diskInfo.writesPerSec,
+			    (unsigned long long)data->diskInfo.data[0].writesPerSec,
+			    rt, tdb_flags);
+	output_perf_counter(data->diskInfo.readsPerSec,
+			    (unsigned long long)data->diskInfo.data[0].readsPerSec,
+			    rt, tdb_flags);
+
+	for(i = 0; i < data->diskInfo.numDisks; i++)
+	{
+		output_perf_instance(data->diskInfo.diskObjDesc.index,
+				     i,
+				     (void *)&(data->diskInfo.data[i]),
+				     sizeof(DiskData),
+				     data->diskInfo.mdata[i].mountpoint,
+				     rt, tdb_flags);
+	}
+
+	return;
+}
diff --git a/examples/perfcounter/perf_writer_mem.c b/examples/perfcounter/perf_writer_mem.c
new file mode 100644
index 0000000000..1a9a3ca959
--- /dev/null
+++ b/examples/perfcounter/perf_writer_mem.c
@@ -0,0 +1,125 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+void get_meminfo(PERF_DATA_BLOCK *data)
+{
+    int status;
+    struct sysinfo info;
+    status = sysinfo(&info);
+    
+    data->memInfo.data->availPhysKb = (info.freeram * info.mem_unit)/1024;
+    data->memInfo.data->availSwapKb = (info.freeswap * info.mem_unit)/1024;
+    data->memInfo.data->totalPhysKb = (info.totalram * info.mem_unit)/1024;
+    data->memInfo.data->totalSwapKb = (info.totalswap * info.mem_unit)/1024;
+
+    /* Also get uptime since we have the structure */
+    data->PerfTime = (unsigned long)info.uptime;
+
+    return;
+}
+
+void init_memdata_desc(PERF_DATA_BLOCK *data)
+{
+    init_perf_counter(&(data->memInfo.memObjDesc),
+		      &(data->memInfo.memObjDesc),
+		      get_counter_id(data),
+		      "Memory",
+		      "The Memory performance object consists of counters that describe the behavior of physical and virtual memory on the computer.",
+		      0,
+		      PERF_OBJECT);
+    init_perf_counter(&(data->memInfo.availPhysKb),
+		      &(data->memInfo.memObjDesc),
+		      get_counter_id(data),
+		      "Available Physical Kilobytes",
+		      "Available Physical Kilobytes is the number of free kilobytes in physical memory",
+		      PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->memInfo.availSwapKb),
+		      &(data->memInfo.memObjDesc),
+		      get_counter_id(data),
+		      "Available Swap Kilobytes",
+		      "Available Swap Kilobytes is the number of free kilobytes in swap space",
+		      PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->memInfo.totalPhysKb),
+		      &(data->memInfo.memObjDesc),
+		      get_counter_id(data),
+		      "Total Physical Kilobytes",
+		      "Total Physical Kilobytes is a base counter",
+		      PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
+		      PERF_COUNTER);
+    init_perf_counter(&(data->memInfo.totalSwapKb),
+		      &(data->memInfo.memObjDesc),
+		      get_counter_id(data),
+		      "Total Swap Kilobytes",
+		      "Total Swap Kilobytes is a base counter",
+		      PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
+		      PERF_COUNTER);
+
+    return;
+}
+
+void init_mem_data(PERF_DATA_BLOCK *data)
+{
+    data->memInfo.data = calloc(1, sizeof(*data->memInfo.data));
+    if(!data->memInfo.data)
+    {
+	perror("init_memdata: out of memory");
+	exit(1);
+    }
+
+    init_memdata_desc(data);
+
+    get_meminfo(data);
+
+    return;
+}
+
+void output_mem_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+    output_perf_desc(data->memInfo.memObjDesc, rt);
+    output_perf_desc(data->memInfo.availPhysKb, rt);
+    output_perf_desc(data->memInfo.availSwapKb, rt);
+    output_perf_desc(data->memInfo.totalPhysKb, rt);
+    output_perf_desc(data->memInfo.totalSwapKb, rt);
+
+    return;
+}
+
+void output_meminfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+    output_perf_counter(data->memInfo.availPhysKb, 
+			(unsigned long long)data->memInfo.data->availPhysKb, 
+			rt, tdb_flags);
+    output_perf_counter(data->memInfo.availSwapKb, 
+			(unsigned long long)data->memInfo.data->availSwapKb,
+			rt, tdb_flags);
+    output_perf_counter(data->memInfo.totalPhysKb,
+			(unsigned long long)data->memInfo.data->totalPhysKb,
+			rt, tdb_flags);
+    output_perf_counter(data->memInfo.totalSwapKb,
+			(unsigned long long)data->memInfo.data->totalSwapKb,
+			rt, tdb_flags);
+
+    return;
+}
diff --git a/examples/perfcounter/perf_writer_process.c b/examples/perfcounter/perf_writer_process.c
new file mode 100644
index 0000000000..75a23dae51
--- /dev/null
+++ b/examples/perfcounter/perf_writer_process.c
@@ -0,0 +1,86 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+void get_processinfo(PERF_DATA_BLOCK *data)
+{
+  int status;
+  struct sysinfo info;
+  status = sysinfo(&info);
+
+  data->processInfo.data->runningProcessCount = (unsigned int)info.procs;
+
+  return;
+}
+
+void init_processdata_desc(PERF_DATA_BLOCK *data)
+{
+  init_perf_counter(&(data->processInfo.processObjDesc),
+		    &(data->processInfo.processObjDesc),
+		    get_counter_id(data),
+		    "Processes",
+		    "%The Processes performance object displays aggregate information about processes on the machine.",
+		    0,
+		    PERF_OBJECT);
+  init_perf_counter(&(data->processInfo.runningProcessCount),
+		    &(data->processInfo.processObjDesc),
+		    get_counter_id(data),
+		    "Process Count",
+		    "Process Count is the number of processes currently on the machine.",
+		    PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
+		    PERF_COUNTER);
+   
+  return;
+}
+
+void init_process_data(PERF_DATA_BLOCK *data)
+{
+  data->processInfo.data = calloc(1, sizeof(*data->processInfo.data));
+  if(!(data->processInfo.data))
+    {
+      perror("init_process_data: out of memory");
+      exit(1);
+    }
+  
+  init_processdata_desc(data);
+
+  get_processinfo(data);
+
+  return;
+}
+
+void output_processinfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
+{
+	output_perf_counter(data->processInfo.runningProcessCount,
+			    (unsigned long long)data->processInfo.data->runningProcessCount,
+			    rt, tdb_flags);
+
+	return;
+}
+
+void output_process_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
+{
+	output_perf_desc(data->processInfo.processObjDesc, rt);
+	output_perf_desc(data->processInfo.runningProcessCount, rt);
+
+	return;
+}
diff --git a/examples/perfcounter/perf_writer_util.c b/examples/perfcounter/perf_writer_util.c
new file mode 100644
index 0000000000..bb6422bac2
--- /dev/null
+++ b/examples/perfcounter/perf_writer_util.c
@@ -0,0 +1,244 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Performance Counter Daemon
+ *
+ *  Copyright (C) Marcin Krzysztof Porwit    2005
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "perf.h"
+
+extern sig_atomic_t keep_running;
+
+void fatal(char *msg)
+{
+  perror(msg);
+  exit(1);
+}
+
+void add_key_raw(TDB_CONTEXT *db, char *keystring, void *databuf, size_t datasize, int flags)
+{
+  TDB_DATA key, data;
+
+  key.dptr = keystring;
+  key.dsize = strlen(keystring);
+  data.dptr = databuf;
+  data.dsize = datasize;
+  fprintf(stderr, "doing insert of [%x] with key [%s] into [%s]\n", 
+	  data.dptr, 
+	  keystring, 
+	  db->name);
+
+  tdb_store(db, key, data, flags);
+}
+
+void add_key(TDB_CONTEXT *db, char *keystring, char *datastring, int flags)
+{
+  TDB_DATA key, data;
+
+  key.dptr = keystring;
+  key.dsize = strlen(keystring);
+  data.dptr = datastring;
+  data.dsize = strlen(datastring);
+  /*  fprintf(stderr, "doing insert of [%s] with key [%s] into [%s]\n", 
+	  data.dptr, 
+	  keystring, 
+	  db->name);*/
+
+  tdb_store(db, key, data, flags);
+}
+
+void make_key(char *buf, int buflen, int key_part1, char *key_part2)
+{
+    memset(buf, 0, buflen);
+    if(key_part2 != NULL)
+	sprintf(buf, "%d%s", key_part1, key_part2);
+    else
+	sprintf(buf, "%d", key_part1);
+
+    return;
+}
+
+void usage(char *progname)
+{
+    fprintf(stderr, "Usage: %s [-d] [-f <file_path>].\n", progname);
+    fprintf(stderr, "\t-d: run as a daemon.\n");
+    fprintf(stderr, "\t-f <file_path>: path where the TDB files reside.\n");
+    fprintf(stderr, "\t\tDEFAULT is /tmp/counters\n");
+    exit(1);
+}
+
+void parse_flags(RuntimeSettings *rt, int argc, char **argv)
+{
+    int flag;
+    
+    while((flag = getopt(argc, argv, "df:")) != -1)
+    {
+	switch(flag)
+	{
+	    case 'd':
+	    {
+		rt->dflag = TRUE;
+		break;
+	    }
+	    case 'f':
+	    {
+		memcpy(rt->dbDir, optarg, strlen(optarg));
+		break;
+	    }
+	    default:
+	    {
+		usage(argv[0]);
+	    }
+	}
+    }
+
+    return;
+}
+
+void setup_file_paths(RuntimeSettings *rt)
+{
+    int status;
+
+    if(strlen(rt->dbDir) == 0)
+    {
+	/* No file path was passed in, use default */
+	sprintf(rt->dbDir, "/tmp/counters");
+    }
+
+    sprintf(rt->nameFile, "%s/names.tdb", rt->dbDir);
+    sprintf(rt->counterFile, "%s/data.tdb", rt->dbDir);
+
+    mkdir(rt->dbDir, O_RDWR);
+    rt->cnames = tdb_open(rt->nameFile, 0, TDB_CLEAR_IF_FIRST, O_RDWR | O_CREAT, 0644);
+    rt->cdata = tdb_open(rt->counterFile, 0, TDB_CLEAR_IF_FIRST, O_RDWR | O_CREAT, 0644);
+
+    if(rt->cnames == NULL || rt->cdata == NULL)
+    {
+	perror("setup_file_paths");
+	exit(1);
+    }
+
+    return;
+}
+
+void sigterm_handler()
+{
+    keep_running = FALSE;
+    return;
+}
+
+void daemonize(RuntimeSettings *rt)
+{
+    pid_t pid;
+    int i;
+    int fd;
+
+    /* Check if we're already a daemon */
+    if(getppid() == 1)
+	return;
+    pid = fork();
+    if(pid < 0)
+	/* can't fork */
+	exit(1);
+    else if(pid > 0)
+    {
+	/* we're the parent */
+	tdb_close(rt->cnames);
+	tdb_close(rt->cdata);
+	exit(0);
+    }
+
+    /* get a new session */
+    if(setsid() == -1)
+	exit(2);
+
+    /* Change CWD */
+    chdir("/");
+
+    /* close file descriptors */
+    close(STDIN_FILENO);
+    close(STDOUT_FILENO);
+    close(STDERR_FILENO);
+
+    /* And reopen them as safe defaults */
+    fd = open("/dev/null", O_RDONLY);
+    if(fd != 0)
+    {
+	dup2(fd, 0);
+	close(fd);
+    }
+    fd = open("/dev/null", O_WRONLY);
+    if(fd != 1)
+    {
+	dup2(fd, 1);
+	close(fd);
+    }
+    fd = open("/dev/null", O_WRONLY);
+    if(fd != 2)
+    {
+	dup2(fd, 2);
+	close(fd);
+    }
+
+    /* handle signals */
+    signal(SIGINT, SIG_IGN);
+    signal(SIGHUP, SIG_IGN);
+    signal(SIGTERM, sigterm_handler);
+
+    return;
+}
+
+int get_counter_id(PERF_DATA_BLOCK *data)
+{
+    data->counter_id += 2;
+    data->num_counters++;
+
+    return data->counter_id;
+}
+
+void init_perf_counter(PerfCounter *counter,
+		       PerfCounter *parent,
+		       unsigned int index,
+		       char *name,
+		       char *help,
+		       int counter_type,
+		       int record_type)
+{
+    counter->index = index;
+    memcpy(counter->name, name, strlen(name));
+    memcpy(counter->help, help, strlen(help));
+    counter->counter_type = counter_type;
+    counter->record_type = record_type;
+
+    switch(record_type)
+    {
+	case PERF_OBJECT:
+	    sprintf(counter->relationships, "p");
+	    break;
+	case PERF_COUNTER:
+	    sprintf(counter->relationships, "c[%d]", parent->index);
+	    break;
+	case PERF_INSTANCE:
+	    sprintf(counter->relationships, "i[%d]", parent->index);
+	    break;
+	default:
+	    perror("init_perf_counter: unknown record type");
+	    exit(1);
+    }
+
+    return;
+}
diff --git a/examples/perfcounter/perfcountd.init b/examples/perfcounter/perfcountd.init
new file mode 100755
index 0000000000..bb4148e52f
--- /dev/null
+++ b/examples/perfcounter/perfcountd.init
@@ -0,0 +1,66 @@
+#!/bin/sh
+#
+# Copyright (C) Gerald Carter            2005
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+####################################################################
+
+## This file should have uid root, gid sys and chmod 744
+
+PATH=/bin:/usr/bin:/sbin:/usr/sbin
+
+killproc() 
+{
+	pid=`ps aux | grep $1 | egrep -v '(grep|perfcountd)' | awk '{print $2}'`
+	if [ "$pid" != "" ]; then
+		kill $pid
+	fi
+}
+
+# Start/stop processes 
+
+case "$1" 
+in
+start)
+	/opt/samba/bin/perfcount -d -f /var/lib/samba/perfmon 2> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "Failed!"
+		exit 1
+	fi
+	echo "done!"
+	;;
+stop)
+	killproc perfcount
+	;;
+
+status)
+	pid=`ps aux | grep perfcount | egrep -v '(grep|perfcountd)' | awk '{print $2}'`
+	if [ "$pid" == "" ]; then
+		echo "Dead!"
+		exit 2;
+	fi
+	echo "OK!"
+	;;
+restart)
+	$0 stop && $0 start
+   	;;
+
+*)
+   	echo "Usage: $0 { start|stop|restart|status }"
+   	;;
+esac
+
+