Hi, I suggest to add the content to the wiki, improve it (together with other people) and then to fix the man-page with the result.
If you want write access to the wiki just register with FirstnameLastname and tell me or any other FreeBSD comitter with wiki access about it so that we can hand out write access. Bye, Alexander. -- Send via an Android device, please forgive brevity and typographic and spelling errors. Vincent Hoffman <vi...@unsane.co.uk> hat geschrieben:On 21/12/2011 15:29, Erik Cederstrand wrote: > Den 21/12/2011 kl. 15.20 skrev Randy Schultz: > >> I agree whole-heartedly. I guess I wasn't clear. I wasn't trying to say >> most >> SA's never tune, only that from watching other SA's over the years, little >> tuning is done. > As a casual SA, I often find I'm fumbling around in the dark to find out if > my server is running optimally. I can check CPU and memory usage, but finding > out if I could get my server to perform better by fiddling with block sizes > or any number of sysctls is daunting. Who knows, maybe my batch jobs can > complete 50% faster, or my CPU load can go from 20% to 10%? > > I really like the mysqltuner script for MySQL in this regard because it > contains all the hard-earned experience of others and actually manages to > suggest useful values for the configuration file for me to adjust. It would > be great if there was something similar for FreeBSD that could suggest things > like "hey, you are getting interrupt storms on em0, might want to check up on > that" or "the block size on ada0 is insane for the current I/O load" or "on > this particular hardware, try setting sysctls xxx and yyy to NNN instead" or > "process 12345 is doing 1 billion system calls/sec, doesn't seem right". > Something like taking the suggestions from > http://serverfault.com/questions/64356/freebsd-performance-tuning-sysctls-loader-conf-kernel > and trying to guess from my specific setup which knobs might apply, and > possibly which values. > > I'm perfectly aware that this is not a substitution for actually thinking, > profiling and benchmarking, but at least I'll have a place to start. I agree that something like mysqltuner would be great, although its such a wide area to cover a single utility probably would not be practical. A good start would be updating the tuning(7) man page. Its been a while since I read it but the first paragraph regarding partition sizes is most definitely out of date. Time to reread it followed by groff_man(7) i guess ;) Vince > Erik_______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to "freebsd-performance-unsubscr...@freebsd.org" _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscr...@freebsd.org"
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