Bug#622887: /usr/bin/perf_2.6.38: "perf list" lists unsupported events
Package: linux-tools-2.6.38
Version: 2.6.38-3
Severity: normal
File: /usr/bin/perf_2.6.38
Event types listed by "perf list" can't be used for profiling (at
least on my system).
My expectation was that "perf list" would list only events I could
actually use.
For example, note how instructions are counted but not cycles, even
though I ask for both:
"
johan@johansdator:~$ perf list|cat
List of pre-defined events (to be used in -e):
cpu-cycles OR cycles [Hardware event]
instructions [Hardware event]
cache-references [Hardware event]
cache-misses [Hardware event]
branch-instructions OR branches [Hardware event]
branch-misses [Hardware event]
bus-cycles [Hardware event]
[...]
johan@johansdator:~$ sudo perf stat -e cycles -e instructions echo foo
foo
Performance counter stats for 'echo foo':
<not counted> cycles
823 105 instructions # 0,000 IPC
"
Regards //Johan
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (990, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.38-2-686 (SMP w/2 CPU cores)
Locale: LANG=sv_SE.utf8, LC_CTYPE=sv_SE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages linux-tools-2.6.38 depends on:
ii libc6 2.11.2-11 Embedded GNU C Library: Shared lib
ii libdw1 0.152-1 library that provides access to th
ii libelf1 0.152-1 library to read and write ELF file
ii libnewt0.52 0.52.11-2 Not Erik's Windowing Toolkit - tex
ii libperl5.10 5.10.1-19 shared Perl library
ii libpython2.6 2.6.6-8+b1 Shared Python runtime library (ver
ii libslang2 2.2.2-4 The S-Lang programming library - r
ii perl 5.10.1-19 Larry Wall's Practical Extraction
ii python 2.6.6-12 interactive high-level object-orie
ii python-support 1.0.11 automated rebuilding support for P
Versions of packages linux-tools-2.6.38 recommends:
ii linux-base 3.2 Linux image base package
Versions of packages linux-tools-2.6.38 suggests:
pn linux-doc-2.6.38 <none> (no description available)
-- no debconf information
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