- 18 Feb, 2011 7 commits
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Michael Witten authored
This commit squashes several commits that remove: unnecessary uname calls `sh -c' BUILT_INS and QUIET_BUILT_IN They have no effect, and the `fixup-builtins' and `check-builtins.sh' scripts don't even exist. RUNTIME_PREFIX It's currently never anything but unset, and it's apparently only meaningful when Microsoft Windows is the operating system (according to the source for git). TEST_PROGRAMS EXTRA_PROGRAMS unused SHELL_PATH_SQ portions unused test for V=2 useless exports Only when `V' is undefined (that is, only when the value of `V' is empty) is `export V' performed, which just has the effect of placing the empty-valued variable `V' in the environment. The only other script to make use of `V' is `Documentation/Makefile', which only checks whether `V' is undefined (that is, whether the value of `V' is empty); hence, the `export V' has no effect whatsoever. Similarly, `export QUIET_GEN' is useless because it will only have a non-empty value when `V' has an empty-value, and when `V' has an empty-value, `QUIET_GEN' is always explicitly set in every script in which it is used. `DESTDIR' is only ever defined by the user via the environment or the command line, both of which are automatically exported to sub-make processes. Furthermore, no non-make sub-scripts make use of `DESTDIR' as an environment variable. No other scripts use `perfexec_instdir'. unused QUIET_SUBDIR{0,1} TAR and RPMBUILD PTHREAD_LIBS Maintainer's dist rules and commands distclean target Test suite coverage testing PRINT_DIR and NO_SUBDIR `configure' target NO_CURL @@PERF_VERSION@@ substitution Without the sed command, all of the rule's commands can be reduced to a single line that copies a file and sets the permissions properly in the process. `make test' echo line template_instdir PERF-BUILD-OPTIONS double-colon rules The use of double-colon rules seems misguided or vestigial git. Essentially hard-coded $(SCRIPTS) expansion Signed-off-by:Michael Witten <mfwitten@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Michael Witten authored
This commit squashes several commits that remove: NO_C99_FORMAT CURLDIR and EXPATDIR NO_DEFLATE_BOUND CC_LD_DYNPATH and NO_R_TO_GCC_LINKER NO_PERL_MAKEMAKER INTERNAL_QSORT NO_EXTERNAL_GREP NO_PERL SCRIPT_PERL PERL_PATH_SQ Signed-off-by:
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Michael Witten authored
While it makes sense that this tool could be used on other platforms at least to parse data, there doesn't appear to be any real support for such usage. This commit squashes several commits that remove: SNPRINTF_RETURNS_BOGUS FREAD_READS_DIRECTORIES NO_D_{INO,TYPE}_IN_DIRENT NO_STRCASESTR NO_MEMMEM NO_STRTOUMAX and NO_STRTOULL NO_SETENV NO_UNSETENV NO_MKDTEMP NEEDS_LIBICONV NEEDS_SOCKET NO_MMAP NO_PTHREADS NO_PREAD NO_TRUSTABLE_FILEMODE NO_IPV6 and NO_SOCKADDR_STORAGE NO_ICONV and OLD_ICONV NO_NSEC, USE_NSEC, and USE_ST_TIMESPEC NO_ST_BLOCKS_IN_STRUCT_STAT NO_FINK and NO_DARWIN_PORTS NO_SYS_SELECT_H NO_HSTRERROR DIR_HAS_BSD_GROUP_SEMANTICS and FORCE_DIR_SET_GID NEEDS_NSL, NO_UINTMAX_T, NO_INET_{N,P}TON COMPAT_{CFLAGS,OBJS} Executable extension `X' Signed-off-by: -
Michael Witten authored
This commit squashes several commits that remove: NO_SYMLINK_HEAD NO_SVN_TESTS NO_FAST_WORKING_DIRECTORY USE_STDEV SHA1/SSL cruft makefile rules Signed-off-by:
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Jan Beulich authored
With no caller left, the function and the DIE_NMIWATCHDOG enumerator can both go away. Signed-off-by:
Jan Beulich <jbeulich@novell.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Don Zickus <dzickus@redhat.com> LKML-Reference: <4D5D521C0200007800032702@vpn.id2.novell.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/core
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Ingo Molnar authored
This reverts commit 5e38ca8f. Breaks the build of several !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK architectures. Cc: Jiri Olsa <jolsa@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Message-ID: <20110217171823.GB17058@elte.hu> Signed-off-by:
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- 17 Feb, 2011 8 commits
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Arnaldo Carvalho de Melo authored
The man page has the details, here are some examples: [root@emilia ~]# perf list *fault* *:*wait* List of pre-defined events (to be used in -e): page-faults OR faults [Software event] minor-faults [Software event] major-faults [Software event] alignment-faults [Software event] emulation-faults [Software event] radeon:radeon_fence_wait_begin [Tracepoint event] radeon:radeon_fence_wait_end [Tracepoint event] writeback:wbc_writeback_wait [Tracepoint event] writeback:wbc_balance_dirty_wait [Tracepoint event] writeback:writeback_congestion_wait [Tracepoint event] writeback:writeback_wait_iff_congested [Tracepoint event] sched:sched_wait_task [Tracepoint event] sched:sched_process_wait [Tracepoint event] sched:sched_stat_wait [Tracepoint event] sched:sched_stat_iowait [Tracepoint event] syscalls:sys_enter_epoll_wait [Tracepoint event] syscalls:sys_exit_epoll_wait [Tracepoint event] syscalls:sys_enter_epoll_pwait [Tracepoint event] syscalls:sys_exit_epoll_pwait [Tracepoint event] syscalls:sys_enter_rt_sigtimedwait [Tracepoint event] syscalls:sys_exit_rt_sigtimedwait [Tracepoint event] syscalls:sys_enter_waitid [Tracepoint event] syscalls:sys_exit_waitid [Tracepoint event] syscalls:sys_enter_wait4 [Tracepoint event] syscalls:sys_exit_wait4 [Tracepoint event] syscalls:sys_enter_waitpid [Tracepoint event] syscalls:sys_exit_waitpid [Tracepoint event] [root@emilia ~]# Suggested-by:
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Arnaldo Carvalho de Melo authored
[root@emilia ~]# perf report --stdio The perf.data file has no samples! [root@emilia ~]# The TUI shows a popup warning message with the same message. Reported-by:
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Arnaldo Carvalho de Melo authored
While testing the --filter option I noticed that we were writing lots of unneeded stuff to the perf.data header when the filter ioctl fails, so move the atexit(atexit_header) call to after we create the counters successfully. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: -
Arnaldo Carvalho de Melo authored
So that we match the header where we state the number of events with the "Samples" column when using 'perf report -n/--show-nr-samples': [root@emilia ~]# perf record -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.111 MB perf.data (~4860 samples) ] [root@emilia ~]# perf report --stdio --show-nr-samples # Events: 11 cycles # # Overhead Samples Command Shared Object Symbol # ........ .......... ........... .................. ............................ # 16.65% 1 sleep [kernel.kallsyms] [k] unmap_vmas 16.10% 1 perf libpthread-2.12.so [.] __pthread_cleanup_push_defer 15.79% 2 perf [kernel.kallsyms] [k] format_decode 12.88% 1 kworker/1:2 [kernel.kallsyms] [k] cache_reap 10.69% 1 swapper [kernel.kallsyms] [k] _raw_spin_lock 7.55% 1 sleep [kernel.kallsyms] [k] prepare_exec_creds 6.00% 1 perf [jbd2] [k] start_this_handle 5.29% 1 perf [kernel.kallsyms] [k] seq_read 4.75% 1 perf [kernel.kallsyms] [k] get_pid_task 4.30% 1 perf [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore # # (For a higher level overview, try: perf report --sort comm,dso) # [root@emilia ~]# Reported-by:Stephane Eranian <eranian@google.com> Acked-by:
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Ingo Molnar authored
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/core
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Ingo Molnar authored
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
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Stephane Eranian authored
This patch changes the way perf stat prints event names at the end of a run. Until now, it was trying to reconstruct the event name from its encoding. The problem is that it would only print generic events without their modifiers (u, k, pp). This patch saves the event name as passed by the user in the evsel struct and uses it to print the final event name. This would also work in case perf is linked with a library (such as libpfm4) which provides full PMU event tables. $ perf stat -e cycles:u,cycles:k date Wed Feb 16 14:58:52 CET 2011 Performance counter stats for 'date': 568600 cycles:u 2779715 cycles:k 0.001908182 seconds time elapsed Cc: Arun Sharma <arun@sharma-home.net> Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@gmail.com> LPU-Reference: <4d5bdc64.98a1df0a.7aa3.06c2@mx.google.com> Signed-off-by: -
Arnaldo Carvalho de Melo authored
The 023695d9 cset added a new file, util/cgroup.c, that is referenced from util/evsel.c, so it needs to be present in util/setup.py so that the python shared object binding works, fixing this: [root@emilia linux]# export PYTHONPATH=~acme/git/build/perf/python/ [root@emilia linux]# ./tools/perf/python/twatch.py Traceback (most recent call last): File "./tools/perf/python/twatch.py", line 16, in <module> import perf ImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: close_cgroup Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
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- 16 Feb, 2011 21 commits
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Masami Hiramatsu authored
Show filename which contains a target function with the function name on "--lines" mode, because perf-probe just shows the first function even if there are many same-name functions. Originally adopted by Franck Bui-Huu's patch which shows file name instead of function name. I've just modified it to show both of function name and file name, because of completeness of output. E.g.) $ perf probe -L t_show <t_show@/home/mhiramat/ksrc/linux-2.6-tip/kernel/trace/ftrace.c:0> 0 static int t_show(struct seq_file *m, void *v) 1 { 2 struct ftrace_iterator *iter = m->private; ... $ perf probe -L t_show@trace/trace.c <t_show@/home/mhiramat/ksrc/linux-2.6-tip/kernel/trace/trace.c:0> 0 static int t_show(struct seq_file *m, void *v) 1 { struct tracer *t = v; ... Original-patch-by:Franck Bui-Huu <fbuihuu@gmail.com> Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20110210090816.1809.43426.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by:
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by:
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Masami Hiramatsu authored
Since "perf probe --add" supports function@filename syntax, --line option should also support it. Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-kernel@vger.kernel.org LKML-Reference: <20110210090810.1809.26913.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by:
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Jesse Brandeburg authored
The perf makefile is nicely complete except for a) an uninstall option b) a 'make help' description This patch implements b) it also comments out other non-working makefile targets Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> LKML-Reference: <new-submission> Signed-off-by:
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Arnaldo Carvalho de Melo authored
Not just for the percentage number, to see the hot lines more easily. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: -
Arnaldo Carvalho de Melo authored
Just like done on symbol__inc_addr_samples to catch misparsed offsets from objdump. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: -
Arnaldo Carvalho de Melo authored
The ui operations so far were used by just one thread, but 'perf top --tui' now has two threads updating the screen, so we need to use a mutex to avoid garbling the screen. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: -
Peter Zijlstra authored
There is no need to re-initialize the hrtimer every time we start it, so don't do that (shaves a few cycles). Also, since we know hrtimers run at a fixed rate (nanoseconds) we can pre-compute the desired frequency at which they tick. This avoids us having to go through the whole adaptive frequency feedback logic (shaves another few cycles). Signed-off-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1297448589.5226.47.camel@laptop> Signed-off-by:
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Peter Zijlstra authored
By pre-computing the maximum number of samples per tick we can avoid a multiplication and a conditional since MAX_INTERRUPTS > max_samples_per_tick. Signed-off-by:
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Robert Richter authored
This patch adds support for AMD family 15h core counters. There are major changes compared to family 10h. First, there is a new perfctr msr range for up to 6 counters. Northbridge counters are separate now. This patch only adds support for core counters. Second, certain events may only be scheduled on certain counters. For this we need to extend the event scheduling and constraints. We use cpu feature flags to calculate family 15h msr address offsets. This way we later can implement a faster ALTERNATIVE() version for this. Signed-off-by:
Robert Richter <robert.richter@amd.com> Signed-off-by:
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Robert Richter authored
Instead of storing the base addresses we can store the counter's msr addresses directly in config_base/event_base of struct hw_perf_event. This avoids recalculating the address with each msr access. The addresses are configured one time. We also need this change to later modify the address calculation. Signed-off-by:
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Robert Richter authored
This patch allows the reservation of perfctrs with new msr addresses introduced for AMD cpu family 15h (0xc0010200/0xc0010201, etc). Signed-off-by:
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Robert Richter authored
This patch adds helper functions to calculate perfctr msr addresses. We need this to later add support for AMD family 15h cpus. For this we have to change the algorithms to generate the perfctr's msr addresses. Signed-off-by:
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Robert Richter authored
Use helper function in x86_pmu_enable_all() to minimize access to x86_pmu.eventsel in the fast path. The counter's msr address is now calculated using struct hw_perf_event. Later we add code that calculates the msr addresses with a table lookup which shouldn't be done in the fast path. Signed-off-by:
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Stephane Eranian authored
This patch adds the ability to filter monitoring based on container groups (cgroups) for both perf stat and perf record. It is possible to monitor multiple cgroup in parallel. There is one cgroup per event. The cgroups to monitor are passed via a new -G option followed by a comma separated list of cgroup names. The cgroup filesystem has to be mounted. Given a cgroup name, the perf tool finds the corresponding directory in the cgroup filesystem and opens it. It then passes that file descriptor to the kernel. Example: $ perf stat -B -a -e cycles:u,cycles:u,cycles:u -G test1,,test2 -- sleep 1 Performance counter stats for 'sleep 1': 2,368,667,414 cycles test1 2,369,661,459 cycles <not counted> cycles test2 1.001856890 seconds time elapsed Signed-off-by: -
Stephane Eranian authored
This kernel patch adds the ability to filter monitoring based on container groups (cgroups). This is for use in per-cpu mode only. The cgroup to monitor is passed as a file descriptor in the pid argument to the syscall. The file descriptor must be opened to the cgroup name in the cgroup filesystem. For instance, if the cgroup name is foo and cgroupfs is mounted in /cgroup, then the file descriptor is opened to /cgroup/foo. Cgroup mode is activated by passing PERF_FLAG_PID_CGROUP in the flags argument to the syscall. For instance to measure in cgroup foo on CPU1 assuming cgroupfs is mounted under /cgroup: struct perf_event_attr attr; int cgroup_fd, fd; cgroup_fd = open("/cgroup/foo", O_RDONLY); fd = perf_event_open(&attr, cgroup_fd, 1, -1, PERF_FLAG_PID_CGROUP); close(cgroup_fd); Signed-off-by: -
Peter Zijlstra authored
Make the ::exit method act like ::attach, it is after all very nearly the same thing. The bug had no effect on correctness - fixing it is an optimization for the scheduler. Also, later perf-cgroups patches rely on it. Signed-off-by:
Paul Menage <menage@google.com> LKML-Reference: <1297160655.13327.92.camel@laptop> Signed-off-by:
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Ingo Molnar authored
Merge reason: we need to queue up dependent patch Signed-off-by: -
Peter Zijlstra authored
It was possible to call pmu::start() on an already running event. In particular this lead so some wreckage as the hrtimer events would re-initialize active timers. This was due to throttled events being activated again by scheduling. Scheduling in a context would add and force start events, resulting in running events with a possible throttle status. The next tick to hit that task will then try to unthrottle the event and call ->start() on an already running event. Reported-by:
Jeff Moyer <jmoyer@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
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Cyrill Gorcunov authored
Several people have reported spurious unknown NMI messages on some P4 CPUs. This patch fixes it by checking for an overflow (negative counter values) directly, instead of relying on the P4_CCCR_OVF bit. Reported-by:
George Spelvin <linux@horizon.com> Reported-by:
Meelis Roos <mroos@linux.ee> Reported-by:
Don Zickus <dzickus@redhat.com> Reported-by:
Dave Airlie <airlied@gmail.com> Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Cc: Lin Ming <ming.m.lin@intel.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <AANLkTinfuTfCck_FfaOHrDqQZZehtRzkBum4SpFoO=KJ@mail.gmail.com> Signed-off-by:
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: set flow handler for secondary interrupt controller of 5249 m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support m68knommu: fix dereference of port.tty m68knommu: add missing linker __modver section m68knommu: fix mis-named variable int set_irq_chip loop m68knommu: add optimize memmove() function m68k: remove arch specific non-optimized memcmp() m68knommu: fix use of un-defined _TIF_WORK_MASK m68knommu: Rename m548x_wdt.c to m54xx_wdt.c m68knommu: fix m548x_wdt.c compilation after headers renaming m68knommu: Remove dependencies on nonexistent M68KNOMMU
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- 15 Feb, 2011 4 commits
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Greg Ungerer authored
The secondary interrupt controller of the ColdFire 5249 code is not setting the edge triggered flow handler. Set it. Signed-off-by:Greg Ungerer <gerg@uclinux.org>
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Greg Ungerer authored
The m68knommu arch does not define or use IRQ_FLG_LOCK in its irq subsystem. Remove obsolete use of it. Signed-off-by: -
Greg Ungerer authored
The struct_tty associated with a port is now a direct pointer from within the local private driver info struct. So fix all uses of it. Signed-off-by: -
Greg Ungerer authored
Add missing linker section __modver to fix: LD vmlinux /usr/local/bin/../m68k-uclinux/bin/ld.real: error: no memory region specified for loadable section `__modver' Signed-off-by:
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