Displaying 2 results from an estimated 2 matches for "nfract".
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fract
2003 Apr 30
1
ext3 and data=journal bug
...tches)?
One last thing is that I have come up with the below bdflush settings based on
the filesystem/proc.txt kernel documentation. Combined with data=journal or
data=ordered would these settings have any adverse effects on the system?
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nfract Percentage of buffer cache dirty to activate bdflush
ndirty Maximum number of dirty blocks to write out per wake-cycle
nrefill Number of clean buffers to try to obtain each time we call refill
nref_dirt buffer threshold for activating bdflush when trying to...
2004 Feb 05
3
increasing ext3 or io responsiveness
Our Invoice posting routine (intensive harddrive io) freezes every few
seconds to flush the cache. Reading this:
https://listman.redhat.com/archives/ext3-users/2002-November/msg00070.html
I decided to try:
# elvtune -r 2048 -w 131072 /dev/sda
# echo "90 500 0 0 600000 600000 95 20 0" >/proc/sys/vm/bdflush
# run_post_routine
# elvtune -r 128 -w 512 /dev/sda
# echo "30 500 0 0