Date: Mon, 27 Oct 1997 00:03:13 +1100 From: Bruce Evans <bde@zeta.org.au> To: anton@urc.ac.ru, stable@FreeBSD.ORG Subject: Re: Kernel's nfs dramatically slows down a diskless workstation Message-ID: <199710261303.AAA21503@godzilla.zeta.org.au>
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>When I compile and install a new kernel for one, it becomes very-very slow. >Systat -vmstat shows that amount of interrupts take up to 78% of time, and up >to 700 interrupts per second are produced by ed0 installed on IRQ10. >... >pretty enough. Because of nfs.h and nfs_vnopts.h differ in only function >prototypes and calls, possibly the critical changes are located in nfs_bio.c. This seems to be fixed in rev.1.42 of nfs_bio.c in -current (ld does a lot of small writes), and perhaps the i/o size of MAXBSIZE in 2.2.5 is too big. Bruce
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