Following my previous benchmarks of SATA SSD cards I got Intel SSD 520 240GB into my hands. In this post I show … let me jump directly to results. First case is random write asynchronous 8 threads IO, the test is done just after… is 0.69ms. Now let me get back to random write case. I will try synchronous IO varying amount of threads…
Post: Testing Samsung SSD SATA 256GB 830 - not all SSD created equal
April 25, 2012 By 10 Comments
… MLC technology, and Intel 320 I would say is the most popular. I do not particularly like its write performance – I wrote… provides much better throughput than Intel 320 (some results for Intel 320). If you are interested more in SSD and MySQL questions – I will be giving a webinary “MySQL and SSD” on…
Post: Testing Fusion-io ioDrive
May 3, 2012 By 1 Comment
… series of posts on testing different SSD, in my last post I mentioned that SATA SSD performance is getting closer to PCIe… 107053 Following the format of previous benchmarks, first is random write async 16KB case. We can see some wave-like pattern… of cards: Intel 520 STEC MACH16 Samsung 830 and each card shows individuals patterns and different handling of write and read IO…
Post: Testing Virident FlashMAX 1400
May 4, 2012 By 3 Comments
… FlashMAX 1400. This is a MLC PCIe SSD device. There are couple notes on these results…. to provide better write performance. So as usually I start with random writes, async. Soon after initial…reference, other results in series: Fusion-io ioDrive Intel 520 STEC MACH16 Samsung 830 Follow @VadimTk !…
Post: Intel 320 SSD write performance - contd.
September 28, 2011 By 8 Comments
… Intel 320 SSD write performance before, but I was not satisfied with these results. Somewhat each time on Intel 320 SSD I was getting different write… before each run. This leads me to conclusion that write performance on Intel 320 SSD is decreasing in time, and actually it is… /dev/sd$i Discussing this problem with engineers working with Intel 320 SSD drives I was advised to use artificial space provisioning…
Post: SSD, XFS, LVM, fsync, write cache, barrier and lost transactions
March 2, 2009 By 32 Comments
… make previous results inconsistent. In short words using Intel SSD X25-E card with enabled write-cache (which is default and most performance…/11/03/xfs-write-barriers/ ), but again with enable write-cache you may lose transactions. So in final conclusion: 1. Intel SSD X25E is NOT reliable in default mode 2. To have durability we need to disable write cache ( with…
Post: Should I buy a Fast SSD or more memory?
April 8, 2010 By 10 Comments
… to buy memory instead, and use the storage device for writes. Here’s the benchmark I came up with to confirm… improves performance by about five times (or 2x with an Intel SSD). To get the same improvement with memory, you would… There are already appliances on the market which use 8 Intel SSD devices). Is a 2x or 5x improvement enough? There…
Post: On Benchmarks on SSD
July 14, 2010 By 3 Comments
… graph from sysbench fileio random write benchmark with 4 threads. The results were taken on PCI-E SSD card ( I do not… devices support TRIM command, for example the first generation of Intel SSD cards did not support it, while G2 does. So why… to 520 MB/s Write: Up to 480 MB/s Sustained Write: Up to 420 MB/s Random Write 4KB : 70,000 IOPS…
Post: FlashCache: first experiments
May 10, 2010 By 18 Comments
… INTEL, Firmware Revision: 045C8621) * SSD-2: Intel X25-M 160GB ( 2 gen ) ( Model Number: INTEL SSDSA2M160G2GC, Firmware Revision: 2CV102HA ) * FlashCache: build over SSD-1 or SSD… separate RAID partition ( not on FlashCache or SSD) * Benchmark: sysbench oltp ( read-only and read-write modes), 80mln rows (~18GB of data… works when we put FlashCache on FusionIO cards instead of Intel SSD.
Post: Intel 320 SSD read performance
July 29, 2011 By 10 Comments
… and startups. Intel 320 SSD appears to be a popular drive with a quite acceptable price. I wrote about write performance of these… SAS 2.5 disks single Intel 320 SSD directly attached to a HighPoint RocketRAID 2300 two Intel 320 SSD in hardware RAID0 mode, attached…, ms (less is better) threads Intel 320 SSD Intel 320 SSD strip RAID ratio RAID/Intel 320 ratio RAID/Intel 320 strip 1 0.53 0…
