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May 26, 2006

Post: MyISAM mmap feature (5.1)

Posted by Vadim |
… Mmap/pread ratio 1 13.79 33.53 2.43 4 29.36 99.15 3.38 16 20.48 136.89 6.68 64 20.34 137.98 6.78 256 20.69 137.97 6.67 So in conclusion memory …
Posted by Vadim @ 4:28 am :: myisam, storage engine :: 8 comments
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June 15, 2006

Post: FreeBSD tests

Posted by Vadim |
… benchmark see here http://www.mysqlperformanceblog.com/2006/06/13/quick-look-at-… ratio 1 335.56 429.89 1.28 4 165.16 … ratio 1 344.72 429.89 1.25 4 531.6 …
Posted by Vadim @ 1:40 am :: Innodb, benchmarks, myisam, operating systems :: 14 comments
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March 15, 2007

Post: MySQL Query Cache and prepared statements - support comming ?

Posted by peter |
Looking at post by Konstantin Osipov we should finally get Query Cache working with prepared statements in MySQL 5.1 The interesting thing Konstantin notes it just took few days to fix it – I believe MySQL Support Team alone spent much more times …
Posted by peter @ 5:06 am :: production :: No comments
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November 1, 2007

Post: Nginx Powers Hulu.com ?

Posted by peter |
…but what is interesting is the server line which shows nginx 0.5.32 I have checked and indeed images served from assets.hulu.com have nginx server in response header. This would be the first site of this (planned) scale to run Nginx. So far even…
Posted by peter @ 12:05 pm :: community :: 10 comments
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May 1, 2008

Post: T2000 CPU Performance - Watch out

Posted by peter |
… | benchmark(100000000,1+2) | +————————–+ | 0 | +————————–+ 1 row in set (18.89 sec) As you can see this is hell a lot of difference ! Depending on your application performance with …
Posted by peter @ 10:00 am :: hardware, production :: 12 comments
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September 28, 2008

Post: What is stored InnoDB buffer pool

Posted by Vadim |
…138 | 15127 | 0 | 0 | 51 | 17855 | index | PRIMARY | art | author87 | | 89 | 1 | 3892 | 151 | 15088 | 0 | 0 | 51 | 17855 | index…
Posted by Vadim @ 7:35 pm :: Innodb, patch, site :: 6 comments
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October 20, 2008

Post: Improved InnoDB rw_lock patch

Posted by Vadim |
… E.g. update_key benchmark from sysbench. There are also results with Yasufumi’s rw_locks (http://bugs.mysql.com/bug.php?id=26442) ThreadsStandard InnoDBGoogle smpfixYasufumi rw_lock 19700.2810601.969432.44 214355.6616673.3112783.58 416104.202669….
Posted by Vadim @ 9:22 am :: Innodb, patch, percona :: 3 comments
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February 1, 2009

Post: Faster MySQL failover with SELECT mirroring

Posted by Baron Schwartz |
…20 0.35 site.clicks 1.26 3.05 5.13 site.actions_finished 1.14 0.46 0.74 site.ratings 0.91 0.89 0.48 The difference is clear. The buffer pool contains over 8G of data for the site.benefits table on the active …
Posted by Baron Schwartz @ 7:13 am :: High Availability, replication, tools :: 9 comments
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June 8, 2009

Post: Impossible - possible, moving InnoDB tables between servers

Posted by Vadim |
… 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 done. Some more information available on http://www.percona.com/docs/wiki/percona-xtradb:patch:innodb_expand_import If you want some internals: I …
Posted by Vadim @ 4:27 pm :: Innodb, xtradb :: 9 comments
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July 31, 2009

Post: Copying InnoDB tables between servers

Posted by Vadim |
The feature I announced some time ago http://www.mysqlperformanceblog.com/2009/06/08/impossible-possible-moving-innodb-tables-between-servers/ is now available … 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 done. When …
Posted by Vadim @ 10:41 am :: tips, xtradb :: 4 comments
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