Date: Thu, 28 Jul 2005 19:54:55 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/usr.bin/netstat Makefile mbuf.c Message-ID: <200507281954.j6SJstf5077921@repoman.freebsd.org>
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rwatson 2005-07-28 19:54:55 UTC FreeBSD src repository Modified files: (Branch: RELENG_6) usr.bin/netstat Makefile mbuf.c Log: Merge mbuf.c:1.43,1.44 and Makefile:1.27 from HEAD to RELENG_6: Modify "netstat -mb" to use libmemstat(3) when acting on a live system, with a number of positive benefits: - Start using UMA(9) statistics for mbufs and clusters, which avoids using the mbuf allocator statistics which suffer from races under load on SMP. This should eliminate "negative" mbuf counts in netstat -mb. - We are now able to track cached (free) mbufs and clusters and count it towards memory allocated by the network stack. - We are now also able to track memory allocated to mbuf tags since libmemstat(3) can also query malloc(9). We don't print this except as part of the total (for now - #if 0). - We are now able to track mbuf/cluster/packet allocation failures, although they are not currently printed (#if 0). - Don't print out sfbuf statistics when running on a kernel core, as currently that code is able only to query sysctl for statistics. mbuf.c:1.44: Since libmemstat(3) now supports its own error management mechanism, use that instead of trying to use errno, in order to produce a sensible error message. Approved by: re (kensmith) Revision Changes Path 1.26.2.1 +2 -2 src/usr.bin/netstat/Makefile 1.42.8.1 +196 -34 src/usr.bin/netstat/mbuf.c
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