Re: [Bacula-users] Perfomance improvement moving from mysql 5.0 to 5.1 or 5.5?
On Sun, Aug 28, 2011 at 03:22:01PM +0200, Maria Arrea wrote: > We are using bacula 5.0.3 with mysql 5.0.77 on RHEL 5.7 x64. We are backing > tens millons of file and we are staring to see performance problems with > mysql. Our server has 6 GB of ram and 1 quad core Intel Xeon E5520 @2.27 Ghz. I went from 1. 4GB MySQL 5.1 MyISAM via 2. 16GB MySQL MyISAM via 3. 16GB MySQL InnoDB to 4. 8GB PostgreSQL 9.0 9M files in last full backup, 2TB data, 35 clients. See Message-ID: <20110811154047.ga27...@r2d2.s.lihas.de> Subject: Re: [Bacula-users] Performance with many files 2011-08-11 and 2011-07-06 for the background. Postgres works so far, but I am only at month 4 of 13 now. A noteable difference is the time needed for spooling jobs to one of my 1GB-sized File-volumes. At the beginning it had been >3*1GB/minute with MySQL, but the performance constantly decreased and in the end it had been 1GB/3minutes with otherwise unchanged disk-parameters (iSCSI-volume). With Postgres I run at 2-3*1GB/minute for 1 month now. The limit is the iSCSI-part, which I will get rid of soon. Regards, Adrian -- LiHAS - Adrian Reyer - Hessenwiesenstraße 10 - D-70565 Stuttgart Fon: +49 (7 11) 78 28 50 90 - Fax: +49 (7 11) 78 28 50 91 Mail: li...@lihas.de - Web: http://lihas.de Linux, Netzwerke, Consulting & Support - USt-ID: DE 227 816 626 Stuttgart -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
Re: [Bacula-users] Perfomance improvement moving from mysql 5.0 to 5.1 or 5.5?
On 08/28/11 09:22, Maria Arrea wrote: > Hello > > We are using bacula 5.0.3 with mysql 5.0.77 on RHEL 5.7 x64. We are > backing tens millons of file and we are staring to see performance > problems with mysql. Our server has 6 GB of ram and 1 quad core Intel > Xeon E5520 @2.27 Ghz. > > We have converted from MyISAM to InnoDB in our mysql, and we have seen > some performance improvements. Doe anybody know if migrating mysql 5.0 > to 5.1 or 5.5 will improve performance with innodb? Oracle claims on the basis of their benchmarks that MySQL 5.5 is 150% faster on Linux than MySQL 5.1, and 1500% faster on Windows. > Maybe more ram would increase also performance? We are using > my-innodb-heavy-4G.cnf as mysql configfile. How much RAM is in the machine? Most of the default config files are next to worthless. Remember that MySQL started out as a SQL DB designed for acceptable performance on machines with less than 32MB of RAM and a single 32-bit CPU core of at most a couple of hundred MHz. Is your MySQL running on a dedicated server, or does it share a box with other applications? On a dedicated MySQL server, as a rule of thumb, 80%-90% of total system RAM should be allocated to MySQL, with 75% of total system RAM in the InnoDB buffer pool. -- Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355 ala...@caerllewys.net ala...@metrocast.net p...@co.ordinate.org Renaissance Man, Unix ronin, Perl hacker, SQL wrangler, Free Stater It's not the years, it's the mileage. -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev ___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
[Bacula-users] Perfomance improvement moving from mysql 5.0 to 5.1 or 5.5?
Hello We are using bacula 5.0.3 with mysql 5.0.77 on RHEL 5.7 x64. We are backing tens millons of file and we are staring to see performance problems with mysql. Our server has 6 GB of ram and 1 quad core Intel Xeon E5520 @2.27 Ghz. We have converted from MyISAM to InnoDB in our mysql, and we have seen some performance improvements. Doe anybody know if migrating mysql 5.0 to 5.1 or 5.5 will improve performance with innodb? We have tried to migrate from mysql to postgresql with no luck (http://mtu.net/~jpschewe/blog/2010/06/migrating-bacula-from-mysql-to-postgresql/) though. Maybe more ram would increase also performance? We are using my-innodb-heavy-4G.cnf as mysql config file. Regards Maria -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev___ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
