new benchmarking

[alpha754293]

Did some SSD benchmarking on my system at work.

Here are the results:

$ time -p dd if=/dev/random of=g bs=1024k count=10240
10240+0 records in
10240+0 records out
10737418240 bytes (11 GB) copied, 495.16 s, 21.7 MB/s
real 495.33
user 358.62
sys 22.06

I don't have the actual console output available to me right now, but here's what the results are like for sustained write (pulled from my email to the IT manager):

"Sustained write ranges from 30-300 MB/s, averaging only 64 MB/s."

and here's the results using c't's h2benchw on a Fusion io-Xtreme 80 GB MLC PCIe x4 SSD card:

Capacity: CHS=(9591/256/64), 157138944 sectors = 76728 MByte

Interface transfer rate w/ block size 128 sectors at 0.0% of capacity:
Sequential read rate medium (w/out delay): 454446 KByte/s
Sequential transfer rate w/ read-ahead (delay: 0.15 ms): 401229 KByte/s
Repetitive sequential read ("core test"): 251470 KByte/s
Sequential write rate medium (w/out delay): 302729 KByte/s
Sequential transfer rate write cache (delay: 0.23 ms): 475249 KByte/s
Repetitive sequential write: 302803 KByte/s

Sustained transfer rate (block size: 128 sectors):
Reading: average 459339.9, min 240695.4, max 627326.9 [KByte/s]
Writing: average 64839.6, min 30607.9, max 304660.4 [KByte/s]

Random access read: average 0.07, min 0.04, max 1.71 [ms]
Random access write: average 0.04, min 0.03, max 0.06 [ms]
Random access read (<504 MByte): average 0.07, min 0.02, max 0.43 [ms]
Random access write (<504 MByte): average 0.04, min 0.03, max 0.06 [ms]

Application profile `swapping': 124065.7 KByte/s
Application profile `installing': 163343.7 KByte/s
Application profile `Word': 159818.3 KByte/s
Application profile `Photoshop': 191616.5 KByte/s
Application profile `copying': 278777.9 KByte/s
Application profile `F-Prot': 202410.4 KByte/s
Result: application index = 176.6

Test system specs:
Intel Core i7 980X (3.33 GHz, 6-core, 3.46 GHz w/ TurboBoost, EIST, C1E, HTT disabled)
Gigabyte GA-X58A-UD3R LGA1366
6x Corsair DDR3-1333 2 GB (12 GB total, I think at the time of testing)
OCZ Vertex 2 90 GB MLC SSD SATA2
PNY nVidia Quadro FX 1800
Windows XP Pro x64

*edit*
Probably with in the next month or so, I'm going to be doing a bunch more testing with SSDs. Particular in relation so how well it performs while running a finite-element analysis simulation (from work).

My current simulations at work take up to 41.5 hours straight. With only 12 GB of RAM, I've used up all of it before (I CAD while the simulation is running via command-line, in the background - I check in on it periodically to make sure that it hasn't bombed out or anything).

And my system is able to beat a dual Xeon X5472 (3 GHz, 4-core) with 32 GB of RAM doing the exact same simulations. (Might be because of the combination of differences in CPU architectures, the speed of the RAM, and the fact that he's using mechanical hard drives, whereas my system is all SSD right now - though I will be getting a 2 TB mechanical disk to store all of my results after the runs have completed).

My focus is going to be on swap file performance, since h2benchw is the ONLY hard drive benchmarking application I know that tests that. (And it's fairly accurate, I think, so far, from what I've seen.)

[tet5uo]

I want a job where I get to play with SSD's :P

[alpha754293]

I want a job where I get to play with SSD's :P

Well...my next big "toy/test" is going with be with a 48-core system, with 128 GB of RAM.

(And yes, it will have an SSD. And yes, half the RAM will be allocated as swapfile/drive.)

Let the thrashing begin.

[tet5uo]

Heh that will be insanity. 128gb of ram lol.

[[XC] Oj101]

48 core.... 48 CORES!!! Join WorldCommunityGrid... NOW!!