Steve,
I have encountered another oddity while writing successive files to my high
speed XFS partition under linux. The problem that I am seeing is that files
are intermittently written in several 1024 block fragments. This filesystem
has been performing well for the past two weeks with many directories
created, many files written, and many directories deleted. While this would
normally not be a problem, it is a big performance hit when it comes time to
read the file.
Do you have any suggestions on how I might prevent this behavior? I have
included the xfs_info and xfs_bmap output below. Thanks.
Rick
meta-data=/test isize=256 agcount=172, agsize=1048576
blks
= sectsz=512
data = bsize=4096 blocks=179566240, imaxpct=25
= sunit=1 swidth=10 blks, unwritten=0
naming =version 2 bsize=4096
log =external bsize=4096 blocks=32768, version=1
= sectsz=512 sunit=0 blks
realtime =none extsz=40960 blocks=0, rtextents=0
test.36.data:
0: [0..10799]: 1368218048..1368228847
test.37.data:
0: [0..1023]: 1367828040..1367829063
1: [1024..2047]: 1367827016..1367828039
2: [2048..3071]: 1367825992..1367827015
3: [3072..4095]: 1367824968..1367825991
4: [4096..5119]: 1367823944..1367824967
5: [5120..6143]: 1367822920..1367823943
6: [6144..7167]: 1367821896..1367822919
7: [7168..8191]: 1367820872..1367821895
8: [8192..9215]: 1367819848..1367820871
9: [9216..10239]: 1367818824..1367819847
10: [10240..10799]: 1367818256..1367818815
test.38.data:
0: [0..10799]: 1368228848..1368239647
test.39.data:
0: [0..1023]: 1367817232..1367818255
1: [1024..2047]: 1367816208..1367817231
2: [2048..3071]: 1367815184..1367816207
3: [3072..4095]: 1367814160..1367815183
4: [4096..5119]: 1367813136..1367814159
5: [5120..6143]: 1367812112..1367813135
6: [6144..7167]: 1367811088..1367812111
7: [7168..8191]: 1367810064..1367811087
8: [8192..9215]: 1367809040..1367810063
9: [9216..10239]: 1367808016..1367809039
10: [10240..10799]: 1367807448..1367808007
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