Hi Vadim, YOu’ve just found a known problem that we are …/xfs/2012-01/msg00325.html and this was the prototype patch I wrote to fix the overwrite DIO performance problem: http… XFS results are: sync async threads throughput throughput vanilla patched vanilla patched 1 1.90/124k 1.83/120k 1.72/112k…
Comment: ext4 vs xfs on SSD
April 24, 2012 By 23 Comments
Vadim, Selecting something as important as an Operating System or major … agreements, customers can try to pressure companies to move one patch ahead of another. I’ve worked in that environment, and can tell you that I’ve almost never seen a patch moved up that way unless something is completely broken. There…
Post: How Percona Develops Open-Source Software
January 9, 2009 By 4 Comments
… These are all fair points to bring up. Peter, Vadim and I thought we should address them and let everyone… slow-logging functionality, which is part of our standard patches. These patches make it possible to learn a great deal about what… wondering, “why don’t you contribute your patches back to MySQL?” We do contribute our patches. They are GPL-licensed, which is…
Post: Rebuilding MySQL Binary
November 16, 2006 By 2 Comments
… third party patches or simply try latest snapshot (This time I was both applying patches for Innodb scalability and Vadim‘s patches to get… change and finding this was not pleasant. This time however Vadim advised me better solution – run mysqlbug script and get configure…
Comment: 5.4 in-memory tpcc-like load
May 1, 2009 By 11 Comments
Good stuff, Vadim. As you know, we at Innobase do follow your work …, we have been and are quite interested in considering your patches for a future version of InnoDB, and can do so…/03/software-is-hard-sometimes/), we will evaluate community-contributed patches for correctness, make them portable, adjust as necessary to integrate…
Comment: Returning to InnoDB scalability
October 19, 2006 By 42 Comments
Hi Vadim, If you have any plans to include this patch into official source when could we expect it? What version could contain the patch? If it will remain experimental some more time may be however it does make sense to include the patch into official source and add configure option for its activation…
Comment: Returning to InnoDB scalability
August 11, 2006 By 42 Comments
Vadim, I used and tested TPCW. In my environment, the performance went up by this patch by about 80%. This patch is effective…_concurrency=20 Throughput=311WIPS MySQL=5.0.22-source + this Patch innodb_thread_concurrency=20 Throughput=558WIPS Toshikazu.
Post: Fix of InnoDB/XtraDB scalability of rollback segment
January 18, 2009 By 9 Comments
… mechanism to support multiple rollback segments – and Yasufumi just made patch to enable it. I rerun benchmarks on different server (Dell…=0 skip-name-resolve table_cache=2048 sysbench parameters /data/vadim/benchwork/benchmarks/sysbench/bin/sysbench –num-threads 1 –max-requests… auto –mysql-host localhost –mysql-port 3306 –mysql-socket /data/vadim/benchwork/var/mysql_benchwork.sock –mysql-user user –mysql-password…
Post: Percona turns two today !
August 1, 2008 By 13 Comments
… August 1st I started what later was incorporated Percona with Vadim joining me September 1st as co-founder. Two years is… pay), Sponsored some Sphinx development. We also published variety of patches for MySQL. Though our giving back to community does not… on our employees and retaining team values. For us with Vadim the the change was the serious one. As we started…
Page: About This Blog
May 3, 2006 By 48 Comments
… learn more about Peter Zaitsev on our company team page. Vadim Tkachenko: I partner with Peter on our MySQL Consulting Practice… to scale with multiple CPUs and I have a prototype patch which seems to help a lot on certain workloads. Before… as replacement of gprof and oprofile. To learn more about Vadim Tkachenko please visit our company team page. We have published…
