Date: Fri, 22 Jul 2005 02:54:06 GMT From: Robert Watson <rwatson@FreeBSD.org> To: justin@erenkrantz.com, rwatson@FreeBSD.org, freebsd-bugs@FreeBSD.org, rwatson@FreeBSD.org Subject: Re: kern/75277: netstat -m 'mbufs in use' output appears to be incorrect Message-ID: <200507220254.j6M2s6Cq040911@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
Synopsis: netstat -m 'mbufs in use' output appears to be incorrect State-Changed-From-To: feedback->patched State-Changed-By: rwatson State-Changed-When: Fri Jul 22 02:53:11 GMT 2005 State-Changed-Why: This problem was introduced with the move to using UMA for mbuf allocation, as the mbuf allocation stats were no longer properly synchronized as of that time. As a result, busy SMP systems could see stat drived. This problem is believed to be fixed in 7-CURRENT via the introduction of libmemstat(3), as well as changes to uma(9) and malloc(9) statistics gathering. An MFC to 6.x for 6.0 is planned in the near future. MFC to 5.x is being considered, but will require some additional work as there have been a number of significant changes in memory allocation between 5.x and 6.x. It would be helpful to confirm that the 6.x statistics now render properly, etc. Leaving this PR open until MFC's take place. Responsible-Changed-From-To: freebsd-bugs->rwatson Responsible-Changed-By: rwatson Responsible-Changed-When: Fri Jul 22 02:53:11 GMT 2005 Responsible-Changed-Why: This problem was introduced with the move to using UMA for mbuf allocation, as the mbuf allocation stats were no longer properly synchronized as of that time. As a result, busy SMP systems could see stat drived. This problem is believed to be fixed in 7-CURRENT via the introduction of libmemstat(3), as well as changes to uma(9) and malloc(9) statistics gathering. An MFC to 6.x for 6.0 is planned in the near future. MFC to 5.x is being considered, but will require some additional work as there have been a number of significant changes in memory allocation between 5.x and 6.x. It would be helpful to confirm that the 6.x statistics now render properly, etc. Leaving this PR open until MFC's take place. http://www.freebsd.org/cgi/query-pr.cgi?pr=75277
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200507220254.j6M2s6Cq040911>