Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: Fw: 2.6.11-rc5-mm1: reiser4 eating cpu time | Date | Tue, 15 Mar 2005 08:57:36 +0200 |
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On Sunday 13 March 2005 15:24, Alexander Gran wrote: > Hi, > > Well, of course it cannot handle that large files (I wouldn't expect that, > either). My Problem is that when I open the file, it's not just kwrite but > other processes that need so much cpu time. That kwrite is eating cpu is ok. > I cannot reproduce the behaviour for some reason however. > So for short what's now (2.6.11-mm3) hapening: > I open a file of 150MB with kwrite. Kwrite start using all cpu it can get > After some seconds pdflush kicks in. Kwrite seems to wait, and pdflush is > eating cpu cyles. These 2 alternate for some time, until file is loaded.
I bet kwrite does something silly.
Use strace -tt to find out whether kwrite spends that much CPU by doing zillions of syscalls or not. -- vda
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