On Mon, Jul 11, 2011 at 09:00:37PM +0200, Francois Tigeot wrote:
> On Mon, Jul 11, 2011 at 07:39:11PM +0200, Francois Tigeot wrote:
> > On Mon, Jul 11, 2011 at 10:19:37AM -0700, Matthew Dillon wrote:
> > > Try this: Change arcmsr.c's cam_sim_alloc() call from this:
> > > 1,
> > > To this:
> > > ARCMSR_MAX_OUTSTANDING_CMD,
> >
> > Done, I'll start a new set of benchmarks with RAID0 configurations.
>
> I hate to say it, but this modification didn't change anything
> performance-wise.
>
> On the fastest disk configuration (RAID0, 4 disks), the results are:
>
> writes: 600
> reads : 178372
For good measure, I did the same test with UFS1+softupdates.
The results are much lower:
writes: 282
reads: 20522
there was very little disk activity and blogbench was almost constantly
sleeping (process in nanslp state)
--
Francois Tigeot
dragonfly:/root#blogbench -d /mnt/blogbench
Frequency = 10 secs
Scratch dir = [/mnt/blogbench]
Direct I/O: disabled
Spawning 3 writers...
Spawning 1 rewriters...
Spawning 5 commenters...
Spawning 100 readers...
Benchmarking for 30 iterations.
The test will run during 5 minutes.
Nb blogs R articles W articles R pictures W pictures R comments
W comments
33 32710 2136 19032 1615 14518
3721
42 36991 575 20889 469 14708
1487
51 34830 517 19825 567 15847
1510
62 34279 566 19239 318 17708
1488
74 33590 643 19818 421 16920
1286
80 35812 558 21120 483 15540
1294
90 33993 536 20865 593 16073
1185
98 33851 693 20932 521 17990
1936
107 35156 630 22051 569 19749
1344
118 34844 756 22208 499 17477
1274
128 34813 603 20632 588 17541
1497
135 34615 517 21375 553 19442
1515
142 33630 461 21853 465 19213
1521
151 33213 478 21766 464 19032
1551
162 34528 659 23040 498 18277
1376
168 33950 529 23166 581 18285
1314
179 33510 690 22883 465 19042
1530
189 34178 762 22613 621 20354
1660
196 33851 494 22781 357 19476
1564
202 34815 717 24106 587 18066
1733
210 33836 473 22879 480 20982
1613
218 33249 800 23826 555 19374
1800
225 33428 397 23308 373 16991
1988
232 35521 618 24765 557 20395
1944
240 32998 593 23501 496 20453
1364
247 33567 770 23879 548 19340
1453
258 36432 641 25543 708 18894
1608
265 36346 842 26481 542 22344
2119
273 41191 599 28835 606 22016
1797
282 41622 683 29429 493 25300
1458
Final score for writes: 282
Final score for reads : 20522
