Date: Mon, 21 Aug 2006 17:51:55 +0200 From: "Chris Knipe" <savage@savage.za.org> To: <freebsd-questions@freebsd.org> Subject: sluggish disk performance. Message-ID: <000701c6c539$bbb33710$0a01a8c0@superman>
next in thread | raw e-mail | index | archive | help
Hi, 2 users Load 0.06 0.12 0.11 Aug 21 17:48 Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER Tot Share Tot Share Free in out in out Act 122748 10896 524836 30684 14216 count All 247916 13364 3418388 40552 pages Interrupts Proc:r p d s w Csw Trp Sys Int Sof Flt cow 373 total 18100 689 12 369 484 15 81872 wire 100 0: clk 124232 act 41 4: sis0 3.7%Sys 0.3%Intr 0.2%User 1.2%Nice 94.6%Idl 29988 inact 128 8: rtc | | | | | | | | | | 13564 cache 10: rl0 ==- 652 free 13: npx daefr 104 14: ata Namei Name-cache Dir-cache prcfr Calls hits % hits % react 357 357 100 pdwake zfod 340 pdpgs Disks ad0 ofod intrn KB/t 16.83 %slo-z 35456 buf tps 103 4 tfree 414 dirtybuf MB/s 1.70 20988 desiredvnodes % busy 98 5247 numvnodes 4223 freevnodes Got 1 ATA100 Seagate 120GB disk in there at the moment.... 1.7MB/s at 98% busy? Surely, that figure is WAY low??? I'd expect atleast about 10MB/s on ATA100. dmsg detects everything right obviously, atapci0: <SiS 630S UDMA100 controller> port 0xd800-0xd80f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 0.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 ... ad0: 114473MB <ST3120026A/8.01> [232581/16/63] at ata0-master UDMA100 Anything I can look at to speed this up? It's not the most powerfull system ever, P3 850 with 1GB Ram... But I *definately* expect allot more than 2MB/s for 100% load... Thanks, Regards, Chris.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?000701c6c539$bbb33710$0a01a8c0>