From 9133a98c4425085dd86695bed1a48ec750a52430 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 19 Jun 2012 12:42:12 +0930 Subject: ntdb: inline oob check The simple "is it in range" check can be inline; complex cases can be handed through to the normal or transaction handler. NTDB speed: Adding 10000 records: 4111-9983(9149) ns (815528 bytes) Finding 10000 records: 1667-4464(3810) ns (815528 bytes) Missing 10000 records: 1511-3992(3546) ns (815528 bytes) Traversing 10000 records: 1698-4254(3724) ns (815528 bytes) Deleting 10000 records: 3608-7998(7358) ns (815528 bytes) Re-adding 10000 records: 3259-8504(7805) ns (815528 bytes) Appending 10000 records: 5393-13579(12356) ns (1274312 bytes) Churning 10000 records: 6966-17813(16136) ns (1274312 bytes) NTDB speed in transaction: Adding 10000 records: 916-2230(2004) ns (815528 bytes) Finding 10000 records: 330-866(770) ns (815528 bytes) Missing 10000 records: 196-520(471) ns (815528 bytes) Traversing 10000 records: 356-879(800) ns (815528 bytes) Deleting 10000 records: 505-1267(1108) ns (815528 bytes) Re-adding 10000 records: 658-1681(1477) ns (815528 bytes) Appending 10000 records: 1088-2827(2498) ns (1274312 bytes) Churning 10000 records: 1636-4267(3785) ns (1274312 bytes) smbtorture results: ntdb speed 85588-189430(157110) ops/sec --- lib/ntdb/private.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib/ntdb/private.h') diff --git a/lib/ntdb/private.h b/lib/ntdb/private.h index ee8eeb76af..f46b5ef906 100644 --- a/lib/ntdb/private.h +++ b/lib/ntdb/private.h @@ -630,6 +630,18 @@ enum NTDB_ERROR COLD PRINTF_FMT(4, 5) enum ntdb_log_level level, const char *fmt, ...); +static inline enum NTDB_ERROR ntdb_oob(struct ntdb_context *ntdb, + ntdb_off_t off, ntdb_len_t len, + bool probe) +{ + if (likely(off + len >= off) + && likely(off + len <= ntdb->file->map_size) + && likely(!probe)) { + return NTDB_SUCCESS; + } + return ntdb->io->oob(ntdb, off, len, probe); +} + #ifdef NTDB_TRACE void ntdb_trace(struct ntdb_context *ntdb, const char *op); void ntdb_trace_seqnum(struct ntdb_context *ntdb, uint32_t seqnum, const char *op); -- cgit