> > Will update amd64 laptop to main-n268827-75464941dc17 (Mar 16) and test it.
> Please do so...
@main-n268827-75464941dc17 GENERIC-NODEBUG amd64
Ok, I think I have here some numbers related to disk performance being
affected by tcp_rack that somehow is messing with something.
NOTES:
- test [1] was done after a boot without tcp_rack in loader.conf and
[2] tcp_rack was loaded manually with kldload (without rebooting)
- After unloading tcp_rack, same results as [2]
- Cannot unload tcptpts: device busy
[1] without tcp_rack loaded:
==> poudriere testport net/gitup:
11.16s real 5.35s user 6.35s sys
==> bonnie++:
Version 1.98 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
leg.home 32G 25k 99 105m 99 88.7m 99 77k 99 198m 99 12716 1784
Latency 351ms 1793us 2340us 241ms 638us 2514us
Version 1.98 ------Sequential Create------ --------Random Create--------
leg.home -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 14908.273230 97 +++++ +++ 6878.516657 99
15194.808063 97 +++++ +++ 8019.731670 99
Latency 1108us 182us 2228us 1013us 152us 2424us
[2] kldload tcp_rack:
==> poudriere testport net/gitup:
1m0.54s real 4.98s user 1m31.38s sys
==> bonnie++:
Version 1.98 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
leg.home 32G 14k 99 78.0m 99 46.6m 99 25k 99 120m 99 6688 2161
Latency 676ms 18309us 76171us 385ms 924us 2274us
Version 1.98 ------Sequential Create------ --------Random Create--------
leg.home -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 8139.513260 96 19437.792294 99 5494.638508 99
8099.275425 96 19723.528878 99 6363.123671 99
Latency 2982us 338us 3072us 1135us 591us 3236us
Cheers,
--
Nuno Teixeira
FreeBSD Committer (ports)
