xfs_fsr defrag top 10% that have the largest number of extents??
my xfs_fsr version is xfsdump_2.2.48-1,
there is a description in xfs_fsr man said
"
When invoked with no arguments xfs_fsr reorganizes all regular files in all mounted filesystems.
(...)
Each pass goes through and selects files that have the largest number of extents. It attempts to defragment the top 10% of these files on each pass. "
but xfs_fsr -d telling me it defrags in inode ascending order,
is this a normal behavior?
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Quoted 13 lines · AndCycle
my
xfs_fsrversion is xfsdump_2.2.48-1,there is a description in
xfs_fsrman said
"
When invoked with no argumentsxfs_fsrreorganizes all regular files in all mounted filesystems.
(...)
Each pass goes through and selects files that have the largest number of extents. It attempts to defragment the top 10% of these files on each pass.
"
butxfs_fsr-d telling me it defrags in inode ascending order,
Quoted 1 line
Look a little closer:
vvvvvvvvvvvv
ino=603561 extents=1815 can_save=1814 tmp=/.fsr/ag2/tmp14298 ino=12652801 extents=208 can_save=207 tmp=/.fsr/ag2/tmp14298 ino=12652802 extents=164 can_save=163 tmp=/.fsr/ag3/tmp14298 ino=13245759 extents=2 can_save=1 tmp=/.fsr/ag0/tmp14298 ino=77725409 extents=11 can_save=10 tmp=/.fsr/ag3/tmp14298 ino=78685589 extents=2 can_save=1 tmp=/.fsr/ag0/tmp14298 ino=538183901 extents=2 can_save=1 tmp=/.fsr/ag3/tmp14298 ino=543424932 extents=2 can_save=1 tmp=/.fsr/ag0/tmp14298
^^^^^^^^^
Apart from ino=77725409, they are in order of most extents to least extents. Maybe the qsort() library function that is used is not sorting everything correctly, but overall it looks like it is doing pretty much what the man page says. The ascending order of the inode numbers is really just a co-incidence.
Cheers,
Dave.
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