> dbench -t 300 -D $mpoint --clients-per-process=4 16 | tail -19 >>
> $log_file
> mkdir $mpoint/bonnie
> chown nobody.nobody $mpoint/bonnie
> bonnie++ -u nobody:nobody -d $mpoint/bonnie -f -m
> RAID${lvl}-${num}Disk-${chunk}k -n 64:65536:1024:16 >>$log_file
> 2>/dev/null
> tiotest -f 1024 -t 6 -r 1000 -d $mpoint -b 4096 >> $log_file
> tiotest -f 1024 -t 6 -r 1000 -d $mpoint -b 16384 >> $log_file
>
> Obviously, I pulled these tests out of a script I use where all these
> various variables are defined. Just replace the variables with
> something sensible for accessing your array, run them, save off the
> results, run again with a different chunk size, then please post the
> results back here as I imagine they would be very informative.
> Especially the dbench results as I think they are likely to benefit the
> most from the change. Note: dbench, bonnie++, and tiotest should all be
> available in the debian repos.
I could not find tiotest. Also, the version dbench in the distro
does not support the --clients-per-process switch. I'll post the results
from the backup system here, and from the primary system in the next post.
Backup with bitmap-chunk 65M:
16 363285 109.22 MB/sec execute 286 sec
16 364067 109.05 MB/sec execute 287 sec
16 365960 109.26 MB/sec execute 288 sec
16 366880 109.13 MB/sec execute 289 sec
16 368850 109.35 MB/sec execute 290 sec
16 370444 109.45 MB/sec execute 291 sec
16 372360 109.64 MB/sec execute 292 sec
16 373973 109.74 MB/sec execute 293 sec
16 374821 109.61 MB/sec execute 294 sec
16 376967 109.88 MB/sec execute 295 sec
16 377813 109.77 MB/sec execute 296 sec
16 379422 109.87 MB/sec execute 297 sec
16 381197 110.05 MB/sec execute 298 sec
16 382029 109.92 MB/sec execute 299 sec
16 383868 110.10 MB/sec cleanup 300 sec
16 383868 109.74 MB/sec cleanup 301 sec
16 383868 109.37 MB/sec cleanup 302 sec
Throughput 110.101 MB/sec 16 procs
Version 1.03d ------Sequential Output------ --Sequential Input-
--Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec
%CP
RAID5-7Disk-6 3520M 66779 23 46588 22 127821 29 334.7
2
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
%CP
64:65536:1024/16 35 1 113 2 404 9 36 1 54 1 193
5
Backup with default (2048K) bitmap-chunk
16 306080 91.68 MB/sec execute 286 sec
16 307214 91.69 MB/sec execute 287 sec
16 307922 91.61 MB/sec execute 288 sec
16 308828 91.53 MB/sec execute 289 sec
16 310653 91.78 MB/sec execute 290 sec
16 311926 91.82 MB/sec execute 291 sec
16 313569 92.01 MB/sec execute 292 sec
16 314478 91.96 MB/sec execute 293 sec
16 315578 91.99 MB/sec execute 294 sec
16 317416 92.18 MB/sec execute 295 sec
16 318576 92.25 MB/sec execute 296 sec
16 320391 92.39 MB/sec execute 297 sec
16 321309 92.40 MB/sec execute 298 sec
16 322461 92.42 MB/sec execute 299 sec
16 324486 92.70 MB/sec cleanup 300 sec
16 324486 92.39 MB/sec cleanup 301 sec
16 324486 92.17 MB/sec cleanup 302 sec
Throughput 92.6969 MB/sec 16 procs
Version 1.03d ------Sequential Output------ --Sequential Input-
--Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec
%CP
RAID5-7Disk-2 3520M 38751 14 31738 15 114481 28 279.0
1
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
%CP
64:65536:1024/16 30 1 104 2 340 8 30 1 64 1 160
4
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