URL: https://linuxfr.org/forums/linux-debutant/posts/a-quoi-sert-pdflush
Title: a quoi sert pdflush ?
Authors: doublehp
Date: 2005年02月14日T21:04:58+01:00
Tags: linus_torvalds
Score: 0
j ai un demon [pdflush] qui traine, et a chaque fois que mon PC ramem comme un malade, ce truc apparait en bas de ps ... 
 
dhp@pluton:~$ man -k pdflush 
pdflush: nothing appropriate. 
dhp@pluton:~$ whereis pdflush 
pdflush: 
dhp@pluton:~$ dpkg -S pdflush 
dpkg: *pdflush* not found. 
dhp@pluton:~$ locate pdflush 
/usr/src/kernel-source-2.6.8/mm/pdflush.c 
 
visiblement ce n est pas un virus, mais impossible de comprendre a quoi ca sert ... il prends pas de memoire ni le CPU, mais j ai un disque ULTRA lent, et ce truc me fait ramer comme pas deux. 
 
` 
/* 
* mm/pdflush.c - worker threads for writing back filesystem data 
* 
* Copyright (C) 2002, Linus Torvalds. 
* 
* 09Apr2002 akpm@zip.com.au 
* Initial version 
* 29Feb2004 kaos@sgi.com 
* Move worker thread creation to kthread to avoid chewing 
* up stack space with nested calls to kernel_thread. 
*/ 
/* 
* The pdflush threads are worker threads for writing back dirty data. 
* Ideally, we'd like one thread per active disk spindle. But the disk 
* topology is very hard to divine at this level. Instead, we take 
* care in various places to prevent more than one pdflush thread from 
* performing writeback against a single filesystem. pdflush threads 
* have the PF_FLUSHER flag set in current->flags to aid in this. 
*/ 
` 
 
c est bien beau, mais ca me dit pas si c est VRAIMENT inndispensable, et comment le gicler ... vous l avez aussi chez vous ? il vous gene jamais ? 
 
*** de disque dur ...
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