performance joke.

Christian Kendi ksh at ironsoftware.de
Mon May 23 11:36:47 EDT 2011


Hi guys,

I was playing and doing some kernel stuff with ZFS on OSX and Solaris. i know that my ZFS was never the fastest, 
but considering the performance the linux implementation is a bare joke to me. The pool is raid0.


  pool: data
 state: ONLINE
 scan: scrub in progress since Mon May 23 17:23:17 2011
    2.08G scanned out of 53.0G at 3.83M/s, 3h46m to go
    0 repaired, 3.93% done


avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           0.13    0.00    7.07    0.00    0.00   92.80

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
sda              41.00         1.41         0.00          1          0
sdb              47.00         1.79         0.00          1          0

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           0.00    0.00    6.48    0.00    0.12   93.40

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
sda              47.00         1.19         0.00          1          0
sdb              42.00         2.29         0.00          2          0

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
sda              64.36         4.50         0.00          4          0
sdb              50.50         4.35         0.00          4          0

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           0.00    0.00    8.53    0.00    0.13   91.34

Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
sda              64.00         4.41         0.00          4          0
sdb              61.00         4.78         0.00          4          0


What is happening there? Any explanations for that kind of behavior?

Greets,
Christian Kendi.

---
Dipl.-Ing. Christian Kendi
Iron Software
Gärtnerstr. 62b
80992 Munich, Germany
mailto: ksh at ironsoftware.de
mobile: +49 (0) 177 / 55 - 31 33 7
spain: +34 (637) 12 43 49
phone: +49 (0) 89 42 09 56 319
*****************************************
Geschaeftsfuehrer: Christian Kendi
Steuernr: 145/119/80187 * Amtsgericht: Erding

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.zfsonlinux.org/pipermail/zfs-discuss/attachments/20110523/fafe8f6d/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PGP.sig
Type: application/pgp-signature
Size: 186 bytes
Desc: Mensaje firmado digitalmente
URL: <http://list.zfsonlinux.org/pipermail/zfs-discuss/attachments/20110523/fafe8f6d/attachment.sig>


More information about the zfs-discuss mailing list