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| author | Gerald Carter <jerry@samba.org> | 2003-01-15 22:29:27 +0000 |
|---|---|---|
| committer | Gerald Carter <jerry@samba.org> | 2003-01-15 22:29:27 +0000 |
| commit | 2a85f0cf33f303e091ce6f6bea7b7a072cd81c14 (patch) | |
| tree | 0ab129510034a715a9c31ff1433db404ee1c1e26 /docs/htmldocs/speed.html | |
| parent | 3a5a4159882635800b57fc766c7d4e2ec0297bb9 (diff) | |
| download | samba-2a85f0cf33f303e091ce6f6bea7b7a072cd81c14.tar.gz samba-2a85f0cf33f303e091ce6f6bea7b7a072cd81c14.tar.bz2 samba-2a85f0cf33f303e091ce6f6bea7b7a072cd81c14.zip | |
syncing docs with HEAD
(This used to be commit d8fe70c3b4be548244e9d7b7ea533e64232df001)
Diffstat (limited to 'docs/htmldocs/speed.html')
| -rw-r--r-- | docs/htmldocs/speed.html | 111 |
1 files changed, 59 insertions, 52 deletions
diff --git a/docs/htmldocs/speed.html b/docs/htmldocs/speed.html index 047929af48..85562e3e89 100644 --- a/docs/htmldocs/speed.html +++ b/docs/htmldocs/speed.html @@ -9,12 +9,15 @@ CONTENT="Modular DocBook HTML Stylesheet Version 1.77"><LINK REL="HOME" TITLE="SAMBA Project Documentation" HREF="samba-howto-collection.html"><LINK +REL="UP" +TITLE="Optional configuration" +HREF="optional.html"><LINK REL="PREVIOUS" -TITLE="Quick Cross Subnet Browsing / Cross Workgroup Browsing guide" -HREF="browsing-quick.html"><LINK +TITLE="Group mapping HOWTO" +HREF="groupmapping.html"><LINK REL="NEXT" -TITLE="HOWTO Access Samba source code via CVS" -HREF="cvs-access.html"></HEAD +TITLE="Appendixes" +HREF="appendixes.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" @@ -42,7 +45,7 @@ WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A -HREF="browsing-quick.html" +HREF="groupmapping.html" ACCESSKEY="P" >Prev</A ></TD @@ -56,7 +59,7 @@ WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A -HREF="cvs-access.html" +HREF="appendixes.html" ACCESSKEY="N" >Next</A ></TD @@ -71,15 +74,15 @@ CLASS="CHAPTER" ><A NAME="SPEED" ></A ->Chapter 17. Samba performance issues</H1 +>Chapter 23. Samba performance issues</H1 ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2742" +NAME="AEN3065" ></A ->17.1. Comparisons</H1 +>23.1. Comparisons</H1 ><P >The Samba server uses TCP to talk to the client. Thus if you are trying to see if it performs well you should really compare it to @@ -108,17 +111,17 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2748" +NAME="AEN3071" ></A ->17.2. Oplocks</H1 +>23.2. Oplocks</H1 ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A -NAME="AEN2750" +NAME="AEN3073" ></A ->17.2.1. Overview</H2 +>23.2.1. Overview</H2 ><P >Oplocks are the way that SMB clients get permission from a server to locally cache file operations. If a server grants an oplock @@ -152,9 +155,9 @@ CLASS="SECT2" ><H2 CLASS="SECT2" ><A -NAME="AEN2758" +NAME="AEN3081" ></A ->17.2.2. Level2 Oplocks</H2 +>23.2.2. Level2 Oplocks</H2 ><P >With Samba 2.0.5 a new capability - level2 (read only) oplocks is supported (although the option is off by default - see the smb.conf @@ -176,9 +179,9 @@ CLASS="SECT2" ><H2 CLASS="SECT2" ><A -NAME="AEN2764" +NAME="AEN3087" ></A ->17.2.3. Old 'fake oplocks' option - deprecated</H2 +>23.2.3. Old 'fake oplocks' option - deprecated</H2 ><P >Samba can also fake oplocks, by granting a oplock whenever a client asks for one. This is controlled using the smb.conf option "fake @@ -197,9 +200,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2768" +NAME="AEN3091" ></A ->17.3. Socket options</H1 +>23.3. Socket options</H1 ><P >There are a number of socket options that can greatly affect the performance of a TCP based server like Samba.</P @@ -225,9 +228,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2775" +NAME="AEN3098" ></A ->17.4. Read size</H1 +>23.4. Read size</H1 ><P >The option "read size" affects the overlap of disk reads/writes with network reads/writes. If the amount of data being transferred in @@ -251,9 +254,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2780" +NAME="AEN3103" ></A ->17.5. Max xmit</H1 +>23.5. Max xmit</H1 ><P >At startup the client and server negotiate a "maximum transmit" size, which limits the size of nearly all SMB commands. You can set the @@ -274,9 +277,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2785" +NAME="AEN3108" ></A ->17.6. Locking</H1 +>23.6. Locking</H1 ><P >By default Samba does not implement strict locking on each read/write call (although it did in previous versions). If you enable strict @@ -291,9 +294,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2789" +NAME="AEN3112" ></A ->17.7. Share modes</H1 +>23.7. Share modes</H1 ><P >Some people find that opening files is very slow. This is often because of the "share modes" code needed to fully implement the dos @@ -321,9 +324,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2794" +NAME="AEN3117" ></A ->17.8. Log level</H1 +>23.8. Log level</H1 ><P >If you set the log level (also known as "debug level") higher than 2 then you may suffer a large drop in performance. This is because the @@ -335,9 +338,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2797" +NAME="AEN3120" ></A ->17.9. Wide lines</H1 +>23.9. Wide lines</H1 ><P >The "wide links" option is now enabled by default, but if you disable it (for better security) then you may suffer a performance hit in @@ -349,9 +352,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2800" +NAME="AEN3123" ></A ->17.10. Read raw</H1 +>23.10. Read raw</H1 ><P >The "read raw" operation is designed to be an optimised, low-latency file read operation. A server may choose to not support it, @@ -371,9 +374,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2805" +NAME="AEN3128" ></A ->17.11. Write raw</H1 +>23.11. Write raw</H1 ><P >The "write raw" operation is designed to be an optimised, low-latency file write operation. A server may choose to not support it, @@ -388,9 +391,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2809" +NAME="AEN3132" ></A ->17.12. Read prediction</H1 +>23.12. Read prediction</H1 ><P >Samba can do read prediction on some of the SMB commands. Read prediction means that Samba reads some extra data on the last file it @@ -414,9 +417,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2816" +NAME="AEN3139" ></A ->17.13. Memory mapping</H1 +>23.13. Memory mapping</H1 ><P >Samba supports reading files via memory mapping them. One some machines this can give a large boost to performance, on others it @@ -435,9 +438,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2821" +NAME="AEN3144" ></A ->17.14. Slow Clients</H1 +>23.14. Slow Clients</H1 ><P >One person has reported that setting the protocol to COREPLUS rather than LANMAN2 gave a dramatic speed improvement (from 10k/s to 150k/s).</P @@ -452,9 +455,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2825" +NAME="AEN3148" ></A ->17.15. Slow Logins</H1 +>23.15. Slow Logins</H1 ><P >Slow logins are almost always due to the password checking time. Using the lowest practical "password level" will improve things a lot. You @@ -465,9 +468,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2828" +NAME="AEN3151" ></A ->17.16. Client tuning</H1 +>23.16. Client tuning</H1 ><P >Often a speed problem can be traced to the client. The client (for example Windows for Workgroups) can often be tuned for better TCP @@ -569,9 +572,9 @@ CLASS="SECT1" ><H1 CLASS="SECT1" ><A -NAME="AEN2860" +NAME="AEN3183" ></A ->17.17. My Results</H1 +>23.17. My Results</H1 ><P >Some people want to see real numbers in a document like this, so here they are. I have a 486sx33 client running WfWg 3.11 with the 3.11b @@ -610,7 +613,7 @@ WIDTH="33%" ALIGN="left" VALIGN="top" ><A -HREF="browsing-quick.html" +HREF="groupmapping.html" ACCESSKEY="P" >Prev</A ></TD @@ -628,7 +631,7 @@ WIDTH="33%" ALIGN="right" VALIGN="top" ><A -HREF="cvs-access.html" +HREF="appendixes.html" ACCESSKEY="N" >Next</A ></TD @@ -638,17 +641,21 @@ ACCESSKEY="N" WIDTH="33%" ALIGN="left" VALIGN="top" ->Quick Cross Subnet Browsing / Cross Workgroup Browsing guide</TD +>Group mapping HOWTO</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" -> </TD +><A +HREF="optional.html" +ACCESSKEY="U" +>Up</A +></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ->HOWTO Access Samba source code via CVS</TD +>Appendixes</TD ></TR ></TABLE ></DIV |