AnandTech Storage Bench 2011, Light Workload

Our new light workload actually has more write operations than read operations. The split is as follows: 372,630 reads and 459,709 writes. The relatively close read/write ratio does better mimic a typical light workload (although even lighter workloads would be far more read centric). The I/O breakdown is similar to the heavy workload at small IOs, however you'll notice that there are far fewer large IO transfers:

AnandTech Storage Bench 2011—Light Workload IO Breakdown
IO Size % of Total
4KB 27%
16KB 8%
32KB 6%
64KB 5%

Light Workload 2011—Average Data Rate

The Force GS does slightly better in our Light suite but overall its performance is average.

Light Workload 2011—Average Read Speed

Light Workload 2011—Average Write Speed

Light Workload 2011—Disk Busy Time

Light Workload 2011—Disk Busy Time (Reads)

Light Workload 2011—Disk Busy Time (Writes)

AnandTech Storage Bench 2011 Power Consumption
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  • bradcollins - Thursday, November 22, 2012 - link

    One question, all of the tests at Anandtech for Sandforce performance after being hammered for a period of time are always over the entire drive. Do the drives maintain their performance if the random writes are only over 50% or 75% of the LBA's on the drive? Very few people actually fill up their SSD so I wonder if it is a truely relevant test?
  • Impulses - Wednesday, November 28, 2012 - link

    You will always eventually use all of your SSD, wear leveling algorithms will spread data across all NAND packages... A certain portion will always be marked "empty" if you haven't filled it to capacity, but that space has been issued and it's subject to the performance degradation conditions AT tests for.
  • Bullwinkle J Moose - Thursday, November 22, 2012 - link

    Time for an article on Cache Analysis?

    It looks to me as though the 1GB Dram Cache on the Intel DC S3700 is mainly responsible for smoothing out those peaks and valleys to deliver "Consistant" performance across the drive

    As for trim.....

    It's time to start with a fresh perspective on SSD's
  • Bullwinkle J Moose - Thursday, November 22, 2012 - link

    I know Intel claimed otherwise on the dram usage, but I don't buy it

    Sounds more likely they are just sending the competition on a wild goose chase
  • Bullwinkle J Moose - Thursday, November 22, 2012 - link

    Reread DC S3700 review again

    256MB of the 1GB is used for cache

    OK, my bad
  • Bullwinkle J Moose - Thursday, November 22, 2012 - link

    Doh

    If I read it 5 more times I'll get it right eventually
  • extide - Saturday, November 24, 2012 - link

    If it were that easy, don't you think other guys would have drives like the 3700 out?
  • Kristian Vättö - Friday, November 23, 2012 - link

    The problem with caching in general is that there is no good way to test how much write/read caching the drive is doing. All we got is what manufacturers tell us, which may or may not be accurate.
  • mayankleoboy1 - Friday, November 23, 2012 - link

    With each review, Samsung 840Pro looks better and better.
  • JellyRoll - Friday, November 23, 2012 - link

    This information has been already hashed over by several sites, in particular TweakTown. They have been educating the public for months about the lack of TRIM with Sandforce SSDs.
    Other sites have also noticed the read degradation, and commented on it ad nauseum.

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