SEO
vBulletin Search Engine Optimization
| |||||||
| Register | FAQ | Members List | Calendar | Search | Today's Posts | Mark Forums Read |
02-18-2008, 07:23 AM
| ||||
| ||||
 buf_daemon() improvement greetings, please test this and send feedback to me. it should avoid the cleaner from running when it doesn't really need to, improving a bit performance under heavy disk load. cheers, -p. Index: vfs_bio.c ================================================== ================= RCS file: /cvs/src/sys/kern/vfs_bio.c,v retrieving revision 1.71 diff -u -r1.71 vfs_bio.c --- vfs_bio.c 2004/11/01 15:55:38 1.71 +++ vfs_bio.c 2004/11/02 13:13:21 @@ -880,6 +880,12 @@ for (;  {if (numdirtypages < hidirtypages) { tsleep(&bd_req, PRIBIO - 7, "cleaner", 0); + /* + * Between being awaken and actually running, the + * situation might have changed (due to the syncer + * being ran, for example), so do the check again. + */ + continue; } getmicrouptime(&starttime);      |
Linear Mode
