On 28/03/18 11:43, Duncan Roe wrote:
> On Tue, Mar 27, 2018 at 02:02:33PM +1100, Michael Pope wrote: [...]
>> Duncan,
>> Thanks for sharing your NVMe experiences at the meeting last night. Would
>> you be able to run some benchmarks using 'bonnie++' please and post the
>> results?
>> from
>> Michael
>>
> Hi Michael,
>
> I ran a pair. For sda2 (ext3) I made the mistake of testing random creates /
> stat / delete which ran all night and then some, just soaking up CPU. So I
> didn't run that for nvme0n1p2 (ext4).
>
>> 18:07:37$ bonnie++ -d /sda2/bonnie -s 16g -n 1024
>> Writing with putc()...done
>> Writing intelligently...done
>> Rewriting...done
>> Reading with getc()...done
>> Reading intelligently...done
>> start 'em...done...done...done...
>> Create files in sequential order...done.
>> Stat files in sequential order...done.
>> Delete files in sequential order...done.
>> Create files in random order...done.
>> Stat files in random order...done.
>> Delete files in random order...done.
>> Version 1.03e ------Sequential Output------ --Sequential Input-
>> --Random-
>> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
>> --Seeks--
>> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec
>> %CP
>> dimstar 16G 27653 53 27340 16 9023 3 18208 33 20106 3 136.6
>> 0
>> ------Sequential Create------ --------Random
>> Create--------
>> -Create-- --Read--- -Delete-- -Create-- --Read---
>> -Delete--
>> files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
>> %CP
>> 1024 57 99 932164 99 51223 56 58 99 175 99 105
>> 66
>> dimstar,16G,27653,53,27340,16,9023,3,18208,33,20106,3,136.6,0,1024,57,99,932164,99,51223,56,58,99,175,99,105,66
>> 10:20:25$ bonnie++ -d /nvme0n1p2/bonnie -s 16g -n 0
>> Writing with putc()...done
>> Writing intelligently...done
>> Rewriting...done
>> Reading with getc()...done
>> Reading intelligently...done
>> start 'em...done...done...done...
>> Version 1.03e ------Sequential Output------ --Sequential Input-
>> --Random-
>> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
>> --Seeks--
>> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec
>> %CP
>> dimstar 16G 63069 71 332703 41 142806 19 71545 75 375326 25
>> +++++ +++
>> dimstar,16G,63069,71,332703,41,142806,19,71545,75,375326,25,+++++,+++,,,,,,,,,,,,,
>> 10:33:31$
>>
> Per Chr Sequential Output is 2.26 times faster
> Block Sequential Output is 12.17 times faster
> Rewrite Sequential Output is 15.83 times faster
> Per Chr Sequential Input is 3.93 times faster
> Block Sequential Input is 18.67 times faster
> NVMe Random Seeks completed too quickly for bonnie++ to report a result
> (<0.5s)
>
> Bear in mind this is probably with only a PCIe version 2 bus,
>
> Cheers ... Duncan.
>
Thanks Duncan looks like a great speed improvement.
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