2.4.19' drivers/block/ll_rw_blk.c
Hi there,
could you please consider changing those very slow behaviour in "drivers/block/ll_rw_blk.c"? ... Benchmarked against 2.4.18 this is horribly slower ... Doing some heavy disk i/o, want to start another thing, system freeze for some seconds ... Opening a xterm , Ctrl-D to leave, this takes about 5 seconds and somewhat is doing flushing to the disk.
Maybe req_finished_io ?
Adrian, could this be the problem you've experienced?
Afaik this was changed for 2.4.19-pre7 and above.
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Marc-Christian Petersen
http://sourceforge.net/projects/wolk
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Key available at www.keyserver.net. Encrypted e-mail preferred.Quoted 11 lines · Marc-Christian Petersen
Hi there,
could you please consider changing those very slow behaviour in "
drivers/block/ll_rw_blk.c"? ... Benchmarked against 2.4.18 this is horribly slower ... Doing some heavy disk i/o, want to start another thing, system freeze for some seconds ... Opening a xterm , Ctrl-D to leave, this takes about 5 seconds and somewhat is doing flushing to the disk.Maybe
req_finished_io?Adrian, could this be the problem you've experienced?
This is a crazy bug report, sorry :-)
What slow behaviour in ll_rw_blk.c?! Consider providing vmstat when the slowdown takes place. Also, try enable profiling if it seems like hard system freezes.
Quoted 1 line
Afaik this was changed for 2.4.19-pre7 and above.
2.4.19-pre7 works fine, 2.4.19-pre8 stinks?
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Jens Axboe