src-test2/bin/cat, branch release/8.2.0 FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F8.2.0 2009-03-16T12:16:17Z cat(1) compiles fine at WARNS level 6. 2009-03-16T12:16:17Z Dag-Erling Smørgrav des@FreeBSD.org 2009-03-16T12:16:17Z urn:sha1:ed53753dac4c203fe471dbaa5b26d29ff049893d Teach cat(1) and cp(1) to use a larger buffer if enough memory is present 2008-10-30T14:05:57Z Ivan Voras ivoras@FreeBSD.org 2008-10-30T14:05:57Z urn:sha1:e9cbc9a7708270477394aa03527c16d714740a19 in the system. A simple heuristics is used to detect what is "enough" memory: if number of physmem pages is greater than 32k (equalling 128 MB on machines with 4 kB pages). Typical immediate result of these changes is reduction in context switches and the goal is to increase efficiency by using large buffers: before: /usr/bin/time -hlp cat file1 > file2 ... 163 voluntary context switches 11194 involuntary context switches after: /usr/bin/time -hlp ./cat file1 > file2 ... 417 voluntary context switches 272 involuntary context switches Reviewed by: hackers@ (no objections to earlier version of cat patch) Approved by: gnn (mentor) MFC after: 4 months One more nit. 2006-12-23T09:25:23Z Ruslan Ermilov ru@FreeBSD.org 2006-12-23T09:25:23Z urn:sha1:d2b53efbb9d9e7bda08cbfce79df54e1b62753d6 Fix markup. 2006-12-23T09:22:06Z Ruslan Ermilov ru@FreeBSD.org 2006-12-23T09:22:06Z urn:sha1:17bba29b9bcdb67c59fac9c3ed68228647c59f44 Add the new standard EXIT STATUS section where appropriate. 2005-01-16T16:41:59Z Ruslan Ermilov ru@FreeBSD.org 2005-01-16T16:41:59Z urn:sha1:6fca4c7c3f16b87ad8b9ffa6564f5654f44ed581 Sort standard sections in the (documented) preferred order. Eliminate macro calls inside literal displays. 2005-01-15T12:28:01Z Ruslan Ermilov ru@FreeBSD.org 2005-01-15T12:28:01Z urn:sha1:6a5796e73428a23361ef8b48f14fde19225295f4 /*- or .\"- or #- to begin license clauses. 2005-01-10T08:39:26Z Warner Losh imp@FreeBSD.org 2005-01-10T08:39:26Z urn:sha1:9ddb49cbe45441fa3f3a10f6dd355e9956480b5f Use warn() instead of perror(). 2004-07-20T05:52:00Z Tim J. Robbins tjr@FreeBSD.org 2004-07-20T05:52:00Z urn:sha1:2c61418d05e0ec9fbf4f24b64e5358bb53a14b73 Remove clause 3 from the UCB licenses. 2004-04-06T20:06:54Z Mark Murray markm@FreeBSD.org 2004-04-06T20:06:54Z urn:sha1:6195fb4102afbdfc3da8c0ac2e4cacb0f37d89a9 OK'ed by: imp, core Reduce redundancy in the description of the -u option. 2004-03-21T11:04:59Z Tim J. Robbins tjr@FreeBSD.org 2004-03-21T11:04:59Z urn:sha1:744e4bba0ef1d2a507ecd03da2a8f40fe72627bb