On Nov 7, 2012, at 4:48 PM, Wojciech Puchar <woj...@wojtek.tensor.gdynia.pl> wrote:
>>> >>> actually FreeBSD defaults are actually good for COMMON usage. and can be >>> tuned. >>> >>> default MAXBSIZE is one exception. >> >> "Common usage" is vague. While FreeBSD might do ok for some applications >> (dev box, simple workstation/laptop, etc), there are other areas that >> require additional tuning to get better perf that arguably shouldn't as much >> (or there should be templates for doing so): 10GbE and mbuf and network >> tuning; file server and file descriptor, network tuning, etc; low latency >> desktop and scheduler tweaking; etc. > > still any idea why MAXBSIZE is 128kB by default. for modern hard disk it is a > disaster. 2 or even 4 megabyte is OK. > >> >> Not to say that freebsd is entirely at fault, but because it's more of a >> commodity OS that Linux, more tweaking is required... > actually IMHO much more tweaking is needed with linux, at least from what i > know from other people. And they are not newbies > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org" Actually MAXBSIZE is 64k, MAXPHYS is 128k. There was a thread about NFS performance where it was mentioned that bigger MAXBSIZE leads to KVA fragmentation. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
