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Thread: 4K Random QD1 Champs

  1. 03-01-2011, 06:58 AM #1
    F@32
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    4K Random QD1 Champs

    OK, so I know that Fusion-IO has awesome 4K random read numbers at QD1. What is the next best thing (SSD+controller)? I saw Arc-1880 pushing ~200MB/s with 4K in AS SSD and CDM at QD1. What kind and how many SSD's the one would need to achieve this? Would Arc-1880i or 9260-4i+FP achieve that level of performance?

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  2. 03-01-2011, 07:28 AM #2
    One_Hertz
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    The 200mb/s numbers are cache. I think Arc1880 + C300s would be the best bet for QD1 4kb reads. I don't know why you'd get that over the iodrive though if you are looking for QD1 randoms (edit: nevermind. No more iodrives on ebay). Iodrive pulls 92mb/s and I have not seen anything else pull over 50mb/s so it is not even close really.


    edit: oops I completely forgot about ACARDs. Those are similar to IOdrive.
    Last edited by One_Hertz; 03-01-2011 at 07:44 AM.
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  3. 03-01-2011, 07:53 AM #3
    F@32
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    Gotcha. Set CDM to run test over the cache size and 4K QD1 will drop to the performance level of the single SSD attached to the controller. Sad that Fusion IO folks can't make it bootable...

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  4. 03-01-2011, 08:02 AM #4
    Computurd
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    Set CDM to run test over the cache size and 4K QD1 will drop to the performance level of the single SSD attached to the controller
    yeah maybe that is because it would only call on one disk to fill that request? if the access is 4k and the smallest stripe size is 4k...

    there might be a new champ very soon btw...
    Last edited by Computurd; 03-01-2011 at 01:11 PM.
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  5. 03-01-2011, 04:19 PM #5
    F@32
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    Quote Originally Posted by Computurd View Post
    yeah maybe that is because it would only call on one disk to fill that request? if the access is 4k and the smallest stripe size is 4k...

    there might be a new champ very soon btw...
    Too bad new crop of SSDs is neglecting 4K performance improvements. Still in the range of 20MB/s at QD1. I don't know why Anand shows 4K at QD3 in his benching...

    Source: http://www.storagereview.com/intel_ssd_510_review_250gb

    Last edited by F@32; 03-01-2011 at 04:22 PM.

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  6. 03-01-2011, 06:39 PM #6
    flamenko
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    Ummmmm Eh?????

    Is this what u mean?
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  7. 03-01-2011, 07:18 PM #7
    F@32
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    Quote Originally Posted by flamenko View Post
    Is this what u mean?
    What drive is it? 36Mb/s at QD1 looks good.
    Last edited by F@32; 03-01-2011 at 07:22 PM.

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  8. 03-01-2011, 09:15 PM #8
    flamenko
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    Further...

    New Vertex 3 with the SF-2000 series processor.
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  9. 03-01-2011, 10:17 PM #9
    Anvil
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    Although a great result it's not valid!

    The 0-Fill option basically means 100% compressible data.
    Could you do a run without that option?
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  10. 03-02-2011, 05:00 AM #10
    Praz
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    Vertex3, CDM default pattern on the SB850.
    Attached Thumbnails Attached Thumbnails Click image for larger version.  Name: cdm.jpg  Views: 2996  Size: 55.0 KB  ID: 112594  
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  11. 03-02-2011, 05:34 AM #11
    Anvil
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    Praz,

    I'd say that the result looks good but that 100MB testsize is a tad low

    I'll make sure to test the Vertex 3 on my AMD MB as well, it is looking good at QD1 using small block-sizes.
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  12. 03-02-2011, 07:44 AM #12
    felix_w
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    Quote Originally Posted by Praz View Post
    Vertex3, CDM default pattern on the SB850.
    Very nice results...Do you happen to have same test in Sata II connection, for satisfaction of the SB750 owners ?
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  13. 03-02-2011, 07:59 AM #13
    Praz
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    Quote Originally Posted by Anvil View Post
    I'd say that the result looks good but that 100MB testsize is a tad low
    100MB is all I ever use for my own reference. If I would have known I'd be posting these screenshots I would have went with 1000MB.



    Quote Originally Posted by felix_w View Post
    Very nice results...Do you happen to have same test in Sata II connection, for satisfaction of the SB750 owners ?
    SATA II results. Same setup as SATA III screenshot. Only Secure Erased the drive and switch the SB850 to SATA II.
    Attached Thumbnails Attached Thumbnails Click image for larger version.  Name: cdm.jpg  Views: 656  Size: 56.9 KB  ID: 112597  
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  14. 03-02-2011, 08:03 AM #14
    felix_w
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    Excellent results in Sata II too....Thank you, Praz

    I just hope that 120GB Version does not have dramatically drop of performance...
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  15. 03-02-2011, 06:15 PM #15
    johnw
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    Quote Originally Posted by Praz View Post
    Vertex3, CDM default pattern on the SB850.
    How about an AS-SSD on the Vertex 3?
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  16. 03-25-2011, 06:50 AM #16
    F@32
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    So with underwhelming 25nm SSD drives 4K performance my hope for new champs goes away. We are still looking at Fuion-IO, ACARD and C300 as the fastest 4K performers at QD1, am I correct?

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  17. 03-25-2011, 11:08 AM #17
    One_Hertz
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    Seems like it. If you have the money, just get ACARDs and an 1880 and be done with it. No SATA SSD is going to come close, possibly ever with the way Flash is going.
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  18. 03-25-2011, 12:04 PM #18
    Etihtsarom
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    What about the new sandforce controller? Don't no body tell me the next gen SSD's are going to be slower than my Intel G2? What the eff.
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  19. 03-25-2011, 12:11 PM #19
    Brahmzy
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    Quote Originally Posted by Etihtsarom View Post
    What about the new sandforce controller? Don't no body tell me the next gen SSD's are going to be slower than my Intel G2? What the eff.
    They aren't slower than your G2 intel, they're faster.
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  20. 03-25-2011, 12:25 PM #20
    F@32
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    Quote Originally Posted by Brahmzy View Post
    They aren't slower than your G2 intel, they're faster.
    510, M4 are on par with G2, Vertex 2 slower than C300 in 4K, but faster in sequential large read and write.

    In games you will see 100-200Mb/s max sequential read. High sequential performance while sacrificing 4K is pointless.

    Vertex 3 ES seems to be faster across the board. We have to see retail FW and its performance.
    Last edited by F@32; 03-25-2011 at 12:29 PM.

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  21. 03-25-2011, 09:07 PM #21
    Johnny87au
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    Are those screenys accurate using those 4k speeds? fastest ive seen, c400 is a dissapointment!

    Another thing I find funny is AMD/Intel would snipe any of our Moms on a grocery run if it meant good quarterly results, and you are forever whining about what feser did?
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