… provide tar.gz and RPM binaries for RedHat (CentOS, Oracle Linux) 5 and 6, and Debian packages. Downloads: http://www.percona…
Comment: ext4 vs xfs on SSD
May 8, 2012 By 23 Comments
quick question – the xfs_freeze feature is really killer when one wants to do consistent snapshots/backup of database directories, etc. Is there anything similar in ext4 or is the benchmark of ext4 +lvm (which I know allows this) on par with xfs_freeze (without lvm) ?
Comment: ext4 vs xfs on SSD
May 3, 2012 By 23 Comments
… the time I ran the benchmark above, we were using Linux 2.6.32, as my blog says. We’re now…
Post: Testing STEC SSD MACH16 200GB SLC
April 25, 2012 By 7 Comments
… it appears there is no a reliable way in the Linux asynchronous IO library to get time metrics for particular IO…
Comment: Review of Virident FlashMAX MLC cards
April 25, 2012 By 14 Comments
Actually, I’ve been using on Windows Platform, not Linux. I think this issue applies to any RAID-0 volume …
Comment: Review of Virident FlashMAX MLC cards
April 25, 2012 By 14 Comments
Bob, That’s good information. I am always somewhat hesitant about linux software raid. Even Linux is incredible popular, it feels it is still not mature enough in many areas, including IO.
Post: Testing Samsung SSD SATA 256GB 830 - not all SSD created equal
April 25, 2012 By 10 Comments
… it appears there is no a reliable way in the Linux asynchronous IO library to get time metrics for particular IO…
Comment: Sysbench evaluation of iSCSI performance
April 12, 2012 By 2 Comments
Hi, I am from China. Now, if we use iscsi device for the storage of innodb, we may encounter the … access the data from the remote scsi device bypass the iscsi protocal and the network is unstabitily, so the IO of… like that. eg: in “fil_aio_wait”, if “os_aio_linux_handle” return false, the ut_a(ret). sorry, my english…
Comment: Benchmarks challenges of XtraDB Cluster
April 22, 2012 By 4 Comments
I would be interested to see if IPv4 or IPv6 makes a difference in the benchmarks. And of course MTU size and jumbo frames could be a factor. What about using network bonding or nic teaming (new in linux 3.3?)? This could provide more bandwidth if there are enough network ports available.
Comment: Finding your MySQL High-Availability solution – Replication
April 11, 2012 By 6 Comments
… we are using free mysql version thats comes under centos linux, we are had enough resource left, RAM, CPU in server…
