Re: Request for Testing: TCP RACK
- Reply: tuexen_a_freebsd.org: "Re: Request for Testing: TCP RACK"
- In reply to: tuexen_a_freebsd.org: "Re: Request for Testing: TCP RACK"
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Date: Sat, 16 Mar 2024 19:06:18 UTC
> > 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)