… pricing point our customers are looking for cheaper alternatives. SATA SSD is an options. There is many products based on MLC… in following graphs. Hardware for tests: HP ProLiant DL380 G6, filesystem: ext4, mounted with nobarrier. The results for random write case… results for Intel 320). If you are interested more in SSD and MySQL questions – I will be giving a webinary “MySQL…
Post: Testing STEC SSD MACH16 200GB SLC
April 25, 2012 By 7 Comments
… in following graphs. Hardware for tests: HP ProLiant DL380 G6, filesystem: ext4, mounted with nobarrier. The results for random write case… 4 STEC MACH16 cards. If you are interested more in SSD and MySQL questions – I will be giving a webinary “MySQL and SSD” on May-9. It will be the same as my…
Post: ext4 vs xfs on SSD
March 15, 2012 By 23 Comments
… de facto filesystem for many modern Linux system, I am getting a lot of question if this is good for SSD, or… to share earlier results what I have. I use STEC SSD drive 200GB SLC SATA (my thanks to STEC for providing…
Comment: ext4 vs xfs on SSD
March 25, 2012 By 23 Comments
… check this was the problem – I don’t have a SSD available right now, so I ran the tests on a…… So, basically, XFS is still the filesystem you want for direct IO – but like any filesystem bugs do creep in as we…
Post: Intel 320 SSD write performance - contd.
September 28, 2011 By 8 Comments
… 10GiB to 140GiB with 10GiB step. I use ext4 filesystem, and I perform filesystem format before increasing filesize. The results are pretty… I perform filesystem format before each run. This leads me to conclusion that write performance on Intel 320 SSD is decreasing in time, and actually it is quite unpredictable in each given point of time. Filesystem format does…
Post: RAID vs SSD vs FusionIO
May 1, 2009 By 17 Comments
… all three devices (RAID was on board; Intel X25-E SSD connected to HighPoint controller, FusionIO card) on our working horse…_pool 3GB). Filesystem – XFS mounted with nobarrier option. Graphical results are here and average results: RAID10 – 7439.850 TPM SSD – 10681.050… (see my post http://www.mysqlperformanceblog.com/2009/03/02/ssd-xfs-lvm-fsync-write-cache-barrier-and-lost-transactions/). While…
Post: Should I buy a Fast SSD or more memory?
April 8, 2010 By 10 Comments
… data+indexes) XFS Filesystem mounted with nobarrier option. Tests run with: RAID10 with BBU over 8 disks Intel SSD X25-E 32GB… performance by about five times (or 2x with an Intel SSD). To get the same improvement with memory, you would… memory slots already filled?) Does your budget allow to install SSD cards? (You may still need more than one, since they…
Post: Benchmarks of Intel 320 SSD 600GB
February 22, 2012 By 2 Comments
… have a chance to test a system with Intel 320 SSD drives (NewRelic provided me with an access to the server… space Intel drives: Intel 320 SSD 600GB HDD drives: Seagate Cheetah 15K 600GB 16MB Cache SAS Filesystem: XFS, mkfs.xfs -s size… however allows us to see the best possible scenario for SSD running under MySQL, the final result will show the best…
Comment: Effect from innodb log block size 4096 bytes
January 5, 2011 By 18 Comments
…Peter: the dependence on the “filesystem page” is more realistic, but if it’s 8K you’… 7-8MB/s write speed from the filesystem it’s hard to claim that for SSD using 512 bytes buffered writes is… to SSD there are first 7-MB of data came into the filesystem buffer and only then they are flushed to SSD.. – so…
Post: NILFS - may be not yet
August 8, 2009 By 5 Comments
… how it performs. Installation on our Ubuntu 8.10 with SSD disk (Intel X25-E, 32GB) was pretty plain and I… 16GB file with out of space error, and partition shows: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 30G 29G… was filled by 99%. However after 30 mins it was: Filesystem Size Used Avail Use% Mounted on /dev/sdb1 30G 27G…
