Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!math.lsa.umich.edu!emv From: jg@max.crl.dec.com (Jim Gettys) Newsgroups: comp.archives Subject: x11perf -- X11 pinger [comp.os.mach] Message-ID: <10426@stag.math.lsa.umich.edu> Date: 22 Dec 89 19:29:49 GMT References: <1505@crltrx.crl.dec.com> Sender: news@math.lsa.umich.edu Reply-To: jg@max.crl.dec.com (Jim Gettys) Followup-To: comp.os.mach Lines: 16 Approved: emv@math.lsa.umich.edu (Edward Vielmetti) Archive-name: x11perf/how-to-get Original-posting-by: jg@max.crl.dec.com (Jim Gettys) Original-subject: Re: Mach performance? [Long] Archive-site: gatekeeper.dec.com [16.1.0.2] Reposted-by: emv@math.lsa.umich.edu (Edward Vielmetti) The 3.6 millisecond figure (round trip using TCP) between two PMAXen on a local net was measured with the x11perf program, which you can get off of expo.lcs.mit.edu or gatekeeper.dec.com. It is performing a no-op X request, and timing the response (I think it is just measuring elapsed time on XSync X library calls.). The current version of x11perf is version 1.2. It will also be on the X11R4 distribution. - Jim