Date: Tue, 10 Sep 1996 13:05:45 +0000 From: Darius Moos <moos@degnet.baynet.de> To: "Frank W. Miller" <fwmiller@cs.UMD.EDU> Cc: freebsd-hackers <freebsd-hackers@FreeBSD.org>, master@iaas.msu.su Subject: Re: kernel performance Message-ID: <323567A9.4E16@degnet.baynet.de> References: <199609092229.SAA01670@yangtze.cs.UMD.EDU>
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Maybe gprof is usefull to you. Have a look at "man gprof". Darius Moos. Frank W. Miller wrote: > > For lack of a better place to start, I chose this mailing list. > > I am curious if there are any performance monitoring facilities built > into the kernel. In particular, I am interested in obtaining > timings of the execution of the read() and write() system calls. > I want to break the measurements down according to how much time > is spent in various areas of the kernel code, how much is spent > waiting for I/O device hardware, etc. > > Any pointers would be helpful. > > Later, > FM > > -- > Frank W. Miller Department of Computer Science > fwmiller@cs.umd.edu University of Maryland, College Park > http://www.cs.umd.edu/~fwmiller College Park, Maryland 20742 -- email: moos@degnet.baynet.de
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