[CentOS] slugishness
Paul Bijnens
Paul.Bijnens at xplanation.com
Fri Jul 3 14:20:26 UTC 2009
On 2009-07-03 16:02, Jerry Geis wrote:
>> />/ I have a 3G AM2 quad core CPU... x86_64 centos 5.3
>> />/
>> />/
>> />/ When I am doing backing up to my external USB drive
>> />/ my system becomes sluggish. Clicking on a thunderbird compose
>> />/ takes some time to pop up the window. Typeing doesnt keep up etc...
>> />/
>> />/ Is there something I can change so this backup doesnt slow my system
>> />/ down so much? I dont see HOW it can be taking so much CPU.
>> />/ top at times shows 0 idle or 11% idle from a USB backup.
>> />/
>> />/ Thanks for any suggestions.
>> /
>>
> I have four gig RAM, I am just doing a "rsync -a /home
> /mnt/external_usb/backup.XX.YY.2009"
> My server has RAID-1 SATA 1 TB drives (two of course for raid) and I am
> doing a straight
> rsync to an external 1TB usb connected disk. Not doing any compression
> at this time.
>
> The "renice" did help some mentioned earlier...
"ionice" is very usefull in this case as well.
If possible try to find a solution using eSATA instead of USB, which would
work much smoother.
--
Paul Bijnens, Xplanation Technology Services Tel +32 16 397.525
Interleuvenlaan 86, B-3001 Leuven, BELGIUM Fax +32 16 397.552
***********************************************************************
* I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, *
* quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, ~., *
* stop, end, ^]c, +++ ATH, disconnect, halt, abort, hangup, KJOB, *
* ^X^X, :D::D, kill -9 1, kill -1 $$, shutdown, init 0, Alt-F4, *
* Alt-f-e, Ctrl-Alt-Del, Alt-SysRq-reisub, Stop-A, AltGr-NumLock, ... *
* ... "Are you sure?" ... YES ... Phew ... I'm out *
***********************************************************************
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