With a very recent update to the zfs module that improves I/O scheduling and prefetching, I get the following bonnie++ 1.03a results with a 36 drive RAID10, Solaris 10 U2 on an X4500 with 500GB Hitachi drives (zfs checksumming is off):
Version 1.03 ------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
thumperdw-i-1 32G 120453 99 467814 98 290391 58 109371 99 993344 94 1801 4
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 +++++ +++ +++++ +++ +++++ +++ 30850 99 +++++ +++ +++++ +++
Bumping up the number of concurrent processes to 2, we get about 1.5x speed reads of RAID10 with a concurrent workload (you have to add the rates together):
Version 1.03 ------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
thumperdw-i-1 32G 111441 95 212536 54 171798 51 106184 98 719472 88 1233 2
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 26085 90 +++++ +++ 5700 98 21448 97 +++++ +++ 4381 97
Version 1.03 ------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
thumperdw-i-1 32G 116355 99 212509 54 171647 50 106112 98 715030 87 1274 3
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 26082 99 +++++ +++ 5588 98 21399 88 +++++ +++ 4272 97
So that’s 2500 seeks per second, 1440MB/s sequential block read, 212MB/s per character sequential read.
- Luke
On 7/18/06 6:19 AM, "Jonathan Wheeler" <[EMAIL PROTECTED]> wrote:
>> Version 1.03 ------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
>> zfs0 16G 88937 99 195973 47 95536 29
>> 75279 95 228022 27 433.9 1
>> ------Sequential Create------
>> --------Random Create--------
>> -Create-- --Read--- -Delete--
>> -Create-- --Read--- -Delete--
>> files /sec %CP /sec %CP /sec %CP
>> /sec %CP /sec %CP /sec %CP
>> 16 31812 99 +++++ +++ +++++ +++ 28761
>> 99 +++++ +++ +++++ +++
>> s0,16G,88937,99,195973,47,95536,29,75279,95,228022,27,
>> 433.9,1,16,31812,99,+++++,+++,+++++,+++,28761,99,+++++
>> ,+++,+++++,+++
>
> Here is my version with 5 disks in a single raidz:
>
> -------Sequential Output-------- ---Sequential Input--
> --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
> --Seeks---
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
> /sec %CPU
> 5 disks 16384 62466 72.5 133768 28.0 97698 21.7 66504 88.1 241481 20.7
> 118.2 1.4
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