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Date: Fri, 01 Dec 2006 03:16:15 +0300
From: Alex Tomas <alex@...sterfs.com>
To: linux-ext4@...r.kernel.org
Subject: [RFC] delayed allocation testing on node zefir
Node zefir: 2 x PIII-933MHz, 896MB RAM, SCSI HDD
================================================
Test description:
* dd512w - write 512MB
* dd512r - read 512MB
* dd512rw - rewrite 512MB
* dd1024w - write 1024MB
* dd1024r - read 1024MB
* dd1024rw - rewrite 1024MB
* dd2048w - write 2048MB
* dd2048r - read 2048MB
* dd2048rw - rewrite 2048MB
* kernuntar - untar kernel
* kernstat - stat kernel tree
* kerncat - cat kernel tree to /dev/null
* kernrm - remove kernel tree
* kernuntar2 - 2 concurrent kernuntar
* kernstat2 - 2 concurrent kernstat
* kerncat2 - 2 concurrent kernstat
* kernrm2 - 2 concurrent kernrm
* dbench4 - dbench with 4 threads
* dbench8 - dbench with 8 threads
* dbench16 - dbench with 16 threads
* dbench32 - dbench with 32 threads
Legenda:
* REAL - how long a test took
* UTIME - how long it spent in userspace
* STIME - how long it spent in kernelspace
* READ - how many KBs were read
* WRITTEN - how many KBs were written
UTIME/STIME/READ/WRITTEN are gathered from /proc/stat
so they include all system activity (important for
delayed allocation)
Notes:
* all filesystems are mounted with noatime
* before every test, filesystem was recreated and
remounted after preparation
* reiserfs is mounted with notail option
* ext3 is mounted with reservation,data=writeback
* xfs is mounted with logbufs=8,logbsize=256k
* ext4 is mounted with extents,mballoc,delalloc
: dd512w
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 13.38 4 550 32 525436 5 extents
EXT4 : 11.21 7 286 12 524416 6 extents
REISERFS: 13.08 6 380 20 525420 94 extents
JFS : 12.13 4 344 72 525028 1 extents
XFS : 11.77 4 412 24 524311 2 extents
: dd512r
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 10.31 4 350 524808 0 5 extents
EXT4 : 10.16 5 312 524296 0 5 extents
REISERFS: 10.71 6 379 524800 32 94 extents
JFS : 10.08 4 332 524288 0 1 extents
XFS : 10.29 7 362 524288 1 2 extents
: dd512rw
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 14.03 13 352 520 524336 5 extents
EXT4 : 11.27 9 220 8 524308 5 extents
REISERFS: 14.07 6 309 512 524356 94 extents
JFS : 11.51 2 247 0 524308 1 extents
XFS : 13.00 5 331 0 525145 2 extents
: dd1024w
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 25.74 11 1099 48 1050820 9 extents
EXT4 : 22.85 12 604 24 1048780 9 extents
REISERFS: 25.84 10 825 36 1050856 215 extents
JFS : 24.58 11 698 136 1050980 1 extents
XFS : 23.34 14 885 48 1048625 4 extents
: dd1024r
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 20.73 17 698 1049756 0 9 extents
EXT4 : 20.32 9 661 1048584 0 10 extents
REISERFS: 21.72 14 793 1049716 32 215 extents
JFS : 20.16 10 680 1048576 0 1 extents
XFS : 20.71 8 709 1048576 1 4 extents
: dd1024rw
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 28.45 19 700 1120 1048660 9 extents
EXT4 : 22.32 18 490 8 1048620 9 extents
REISERFS: 28.40 14 653 1152 1048684 215 extents
JFS : 23.09 14 471 0 1048620 1 extents
XFS : 25.55 8 672 0 1050377 4 extents
: dd2048w
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 50.50 29 2285 92 2101632 17 extents
EXT4 : 44.95 18 1301 60 2097524 18 extents
REISERFS: 51.83 21 1668 68 2101596 457 extents
JFS : 48.64 20 1491 264 2106388 1 extents
XFS : 46.34 14 1867 92 2097246 7 extents
: dd2048r
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 42.28 24 1388 2100156 0 17 extents
EXT4 : 40.73 18 1314 2097160 0 19 extents
REISERFS: 43.75 24 1658 2100188 32 457 extents
JFS : 40.51 16 1359 2097152 0 1 extents
XFS : 41.21 17 1483 2097152 1 7 extents
: dd2048rw
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 58.46 23 1491 2572 2097292 17 extents
EXT4 : 44.56 19 1018 12 2097244 19 extents
REISERFS: 56.80 26 1370 2952 2097336 457 extents
JFS : 45.77 22 984 0 2097216 1 extents
XFS : 50.97 20 1394 0 2100825 7 extents
: kernuntar
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 56.99 5037 651 68 252016
EXT4 : 55.03 5034 553 36 249884
REISERFS: 52.55 4996 854 64 238068
JFS : 70.15 5057 630 496 288116
XFS : 72.84 5052 953 132 316798
: kernstat
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 2.83 8 15 5892 0
EXT4 : 0.51 9 10 5892 0
REISERFS: 0.81 7 49 2696 0
JFS : 6.19 11 49 12552 0
XFS : 2.09 9 61 6504 0
: kerncat
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 9.48 25 213 241624 0
EXT4 : 6.29 27 197 238560 0
REISERFS: 14.69 33 230 234744 0
JFS : 23.51 23 231 244596 0
XFS : 18.24 36 254 238548 0
: kernrm
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 4.82 4 108 9628 4672
EXT4 : 1.61 5 110 6536 4632
REISERFS: 3.15 8 276 2768 236
JFS : 33.90 7 168 14400 33048
XFS : 20.03 8 296 6632 86160
: kernuntar2
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 72.83 11552 1512 108 503844
EXT4 : 66.72 11489 1208 60 497732
REISERFS: 70.27 11570 2146 100 476300
JFS : 104.55 11222 1426 504 586860
XFS : 108.03 11333 2008 132 636157
: kernstat2
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 6.73 12 17 11756 0
EXT4 : 0.73 6 20 11808 0
REISERFS: 1.93 8 92 5424 0
JFS : 17.85 17 108 24264 0
XFS : 5.08 20 113 13000 0
: kerncat2
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 24.17 50 422 483236 0
EXT4 : 14.54 46 426 477108 0
REISERFS: 42.82 59 511 469488 0
JFS : 61.48 63 444 488396 0
XFS : 46.63 60 540 477072 0
: kernrm2
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 11.01 6 184 19232 9528
EXT4 : 2.44 13 250 13072 9228
REISERFS: 6.76 7 625 5564 520
JFS : 79.88 15 322 27516 74848
XFS : 44.28 13 691 13140 186428
: dbench2
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 3.22 125 499 16 0 Throughput 215.813 MB/sec 2 procs
EXT4 : 2.76 132 404 8 0 Throughput 251.927 MB/sec 2 procs
REISERFS: 3.69 130 506 12 6048 Throughput 187.573 MB/sec 2 procs
JFS : 5.38 119 441 100 10196 Throughput 127.945 MB/sec 2 procs
XFS : 13.86 125 490 116 23966 Throughput 49.4258 MB/sec 2 procs
: dbench4
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 6.18 276 937 28 5368 Throughput 222.623 MB/sec 4 procs
EXT4 : 5.35 291 759 12 4280 Throughput 258.937 MB/sec 4 procs
REISERFS: 7.84 298 1023 40 66992 Throughput 175.719 MB/sec 4 procs
JFS : 17.43 283 805 372 33144 Throughput 78.5572 MB/sec 4 procs
XFS : 27.82 247 1007 132 55062 Throughput 49.15 MB/sec 4 procs
: dbench8
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 12.37 538 1897 48 97972 Throughput 221.759 MB/sec 8 procs
EXT4 : 10.78 524 1575 12 107252 Throughput 255 MB/sec 8 procs
REISERFS: 15.54 611 2315 76 145652 Throughput 176.266 MB/sec 8 procs
JFS : 40.23 538 1681 492 189276 Throughput 68.0126 MB/sec 8 procs
XFS : 61.33 561 1951 132 272619 Throughput 44.589 MB/sec 8 procs
: dbench16
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 26.85 1078 3789 76 319480 Throughput 203.867 MB/sec 16 procs
EXT4 : 22.76 1101 3107 20 315268 Throughput 240.433 MB/sec 16 procs
REISERFS: 36.40 1072 4546 104 411336 Throughput 150.273 MB/sec 16 procs
JFS : 86.47 1065 3364 496 483656 Throughput 63.2243 MB/sec 16 procs
XFS : 133.00 1139 3770 132 585088 Throughput 41.0857 MB/sec 16 procs
: dbench32
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 57.77 2209 7515 140 835524 Throughput 189.412 MB/sec 32 procs
EXT4 : 48.72 2201 6271 56 826776 Throughput 224.498 MB/sec 32 procs
REISERFS: 87.57 2107 7730 124 1217700 Throughput 124.844 MB/sec 32 procs
JFS : 191.00 2099 6796 504 1034920 Throughput 57.2123 MB/sec 32 procs
XFS : 2125.3 2422 12529 140 4601881 Throughput 5.13852 MB/sec 32 procs
: dbench64
: REAL UTIME STIME READ WRITTEN DETAILS
EXT3 : 137.50 4373 15334 110000 1953432 Throughput 159.002 MB/sec 64 procs
EXT4 : 110.76 4404 12868 159076 2175932 Throughput 197.71 MB/sec 64 procs
REISERFS: 365.08 4164 16814 286200 4924032 Throughput 59.9278 MB/sec 64 procs
JFS : 458.58 4257 13818 118196 2280152 Throughput 47.6528 MB/sec 64 procs
XFS : 6781.9 5089 34484 155344 12020653 Throughput 3.22044 MB/sec 64 procs
thanks, Alex
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