Remove mutex mention. Fixed now.

diff --git a/doc/TODO.detail/performance b/doc/TODO.detail/performance
index 3f07fa3c9198e64d4d45079926c9e1ed7dc4717d..e5123a668d03f6eb3b4a614f1e56d7ccd6804c66 100644 (file)
--- a/doc/TODO.detail/performance
+++ b/doc/TODO.detail/performance
@@ -345,7 +345,7 @@ From [email protected] Tue Oct 19 10:31:10 1999
 Received: from renoir.op.net ([email protected] [209.152.193.4])
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@@ -371,7 +371,7 @@ Date: Tue, 19 Oct 1999 10:09:15 -0400
 Message-ID: <[email protected]>
 From: Tom Lane 
 Sender: [email protected]
-Status: OR
+Status: RO
 
 "Hiroshi Inoue"  writes:
 > 1. shared cache holds committed system tuples.
@@ -454,7 +454,7 @@ From [email protected] Tue Oct 19 21:25:30 1999
 Received: from renoir.op.net ([email protected] [209.152.193.4])
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@@ -487,7 +487,7 @@ X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0
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-Status: ORr
+Status: RO
 
 > -----Original Message-----
 > From: Hiroshi Inoue [mailto:[email protected]]
@@ -573,7 +573,7 @@ From: Tom Lane 
 X-Mailing-List: [email protected]
 Precedence: bulk
 Sender: [email protected]
-Status: ORr
+Status: RO
 
 Those of you with long memories may recall a benchmark that Edmund Mergl
 drew our attention to back in May '99.  That test showed extremely slow
@@ -648,7 +648,7 @@ Content-Type: text/plain; charset=us-ascii
 Content-Disposition: inline
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 In-Reply-To: <[email protected]>; from [email protected] on Fri, Jan 19, 2001 at 12:03:58PM -0500
-Status: OR
+Status: RO
 
 On Fri, Jan 19, 2001 at 12:03:58PM -0500, Bruce Momjian wrote:
 > 
@@ -722,7 +722,7 @@ Content-Type: text/plain;
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+Status: RO
 
 > > Tom, did we ever test this?  I think we did and found that 
 > > it was the same or worse, right?
@@ -760,7 +760,7 @@ Subject: Re: 7.2 items
 References: <[email protected]>
 Content-Type: text/plain; charset=us-ascii
 Content-Transfer-Encoding: 7bit
-Status: OR
+Status: RO
 
 Bruce Momjian wrote:
 
@@ -829,7 +829,7 @@ X-Mailer: Microsoft Internet E-mail/MAPI - 8.0.0.4211
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+Status: RO
 
 And in addition,
 
@@ -930,7 +930,7 @@ In-Reply-To: <[email protected]>
 Message-ID: 
 MIME-Version: 1.0
 Content-Type: TEXT/PLAIN; charset=US-ASCII
-Status: OR
+Status: RO
 
 I think it's possible to implement bitmap indexes with a little
 effort using GiST. at least I know one implementation
@@ -1002,61 +1002,3 @@ Internet: [email protected], http://www.sai.msu.su/~megera/
 phone: +007(095)939-16-83, +007(095)939-23-83
 
 
-From [email protected] Wed Aug  1 15:22:46 2001
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-From: "Mikheev, Vadim" 
-To: "'[email protected]'" 
-Subject: [HACKERS] Using POSIX mutex-es
-Date: Wed, 1 Aug 2001 12:04:24 -0700 
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-
-1. Just changed
-   TAS(lock) to pthread_mutex_trylock(lock)
-   S_LOCK(lock) to pthread_mutex_lock(lock)
-   S_UNLOCK(lock) to pthread_mutex_unlock(lock)
-(and S_INIT_LOCK to share mutex-es between processes).
-
-2. pgbench was initialized with scale 10.
-   SUN WS 10 (512Mb), Solaris 2.6 (I'm unable to test on E4500 -:()
-   -B 16384, wal_files 8, wal_buffers 256,
-   checkpoint_segments 64, checkpoint_timeout 3600
-   50 clients x 100 transactions
-   (after initialization DB dir was saved and before each test
-    copyed back and vacuum-ed).
-
-3. No difference.
-   Mutex version maybe 0.5-1 % faster (eg: 37.264238 tps vs 37.083339 tps).
-
-So - no gain, but no performance loss "from using pthread library"
-(I've also run tests with 1 client), at least on Solaris.
-
-And so - looks like we can use POSIX mutex-es and conditional variables
-(not semaphores; man pthread_cond_wait) and should implement light lmgr,
-probably with priority locking.
-
-Vadim
-
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