From owner-freebsd-questions Mon Dec 11 04:32:17 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id EAA28177 for questions-outgoing; Mon, 11 Dec 1995 04:32:17 -0800 (PST) Received: from hawk.gnome.co.uk (gnome.intecc.co.uk [194.72.95.90]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id EAA28165 for ; Mon, 11 Dec 1995 04:32:03 -0800 (PST) Received: (from jacs@localhost) by hawk.gnome.co.uk (8.6.12/8.6.12) id MAA02666; Mon, 11 Dec 1995 12:31:55 GMT Date: Mon, 11 Dec 1995 12:31:55 GMT From: Chris Stenton Subject: Why is my FreeBSD box so slow on local TCP? To: questions@FreeBSD.org Message-Id: Sender: owner-questions@FreeBSD.org Precedence: bulk I posted this on usenet but got no reply anyone care to give an answer? I have just run lmbench on my pentium FreeBSD-stable box. Ok, I don't expect my box to be as fast as an HP snake but I did not expect it to be 24 times slower than Linux on Local TCP connections. Anyone any ideas whats going on, 100 kb/s is not exactly pushing the boat out? *Local* Communication bandwidths in megabytes/second ---------------------------------------------------- Host OS Pipe TCP File Mmap Bcopy Bcopy Mem Mem reread reread (libc) (hand) read write --------- ------------- ---- ---- ------ ------ ------ ------ ---- ----- rs6000 AIX 2 34 6.0 76.1 63.0 81 120 99 169 hawk.gnom FreeBSD 2.1-S 10 0.1 20.0 36.5 22 22 54 36 mako HP-UX A.09.01 27 18.7 34.4 22.5 22 24 45 39 seahorse HP-UX A.09.03 38 35.2 44.7 32.1 25 31 49 52 snake HP-UX A.09.01 19 17.8 34.4 22.3 22 24 45 39 IP22 IRIX 5.3 34 22.1 32.3 43.7 32 31 69 66 pentium Linux 1.1.54 13 2.4 9.8 4.7 18 18 48 32 alpha OSF1 V2.1 32 12.1 39.4 22.7 39 41 76 78 ss20.50 SunOS 5.4 11 11.0 22.9 30.0 26 31 80 62 ss20.61 SunOS 5.4 24 19.5 31.0 30.7 23 24 59 40 Chris