Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759389Ab0HLJjk (ORCPT ); Thu, 12 Aug 2010 05:39:40 -0400 Received: from smtp-out.google.com ([74.125.121.35]:6006 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753337Ab0HLJjj (ORCPT ); Thu, 12 Aug 2010 05:39:39 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=mime-version:date:message-id:subject:from:to:cc: content-type:x-system-of-record; b=kVRGS0xxCnwxiQ/nyDp2W+VNOsxf+7RJwZHkfKjmKPeqM67QUBW6MGKB+vt++eg4E p5QxfOk8+b1DwPDW8u6Xw== MIME-Version: 1.0 Date: Thu, 12 Aug 2010 11:39:34 +0200 Message-ID: Subject: [BUG] perf: trace -s script is broken From: Stephane Eranian To: Arnaldo Carvalho de Melo Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Frederic Weisbecker , Peter Zijlstra , Tom Zanussi Content-Type: text/plain; charset=UTF-8 X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1885 Lines: 44 Hi, I am trying to understand how you're supposed to use perf trace with a script using tip-x86. I am running into several problems. I did: $ make prefix=/usr $ sudo make install prefix=/usr $ sudo perf record -c 1 -e raw_syscalls:sys_enter -a -- sleep 1 $ sudo perf trace -s sctop.py Can't open python script "sctop.py": No such file or directory I looked into this a bit more, and sure enough, it seems perf is only looking in the current subdir to find sctop.py. However if you do: $ perf trace -l List of available trace scripts: failed-syscalls [comm] system-wide failed syscalls rw-by-file r/w activity for a program, by file rw-by-pid system-wide r/w activity rwtop [interval] system-wide r/w top wakeup-latency system-wide min/max/avg wakeup latency workqueue-stats workqueue stats (ins/exe/create/destroy) failed-syscalls-by-pid [comm] system-wide failed syscalls, by pid sctop [comm] [interval] syscall top syscall-counts-by-pid [comm] system-wide syscall counts, by pid syscall-counts [comm] system-wide syscall counts The listing requires trace to look at /usr/libexec/perf-core/scripts/* I think in builtin-trace.c, you need to add the path prefix, perf_path_exec() to the script_name for this to work correctly. Or am I missing something here? Similarly, all the -report scripts installed via make install, still have the ~/libexec prefix hardcoded into them. I believe those should be relative to the install prefix instead. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/