- 19 Jul, 2017 40 commits
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Jiri Olsa authored
The final period can differ from what user specifies on command line due to the perf_event_max_sample_rate sysctl setup. Thus we can't predixt the sample_period value any more. Signed-off-by:
Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20170703145030.12903-12-jolsa@kernel.orgSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Jiri Olsa authored
The stat command creates all events disabled and enables them either manualy or via the enable_on_exec bit. Signed-off-by:
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Jiri Olsa authored
The record command now properly returns the status of the tracee if there's any. We need to properly set the expected return value of the tracee in the attr tests. Signed-off-by:
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Jiri Olsa authored
Following commit: commit 509051ea ("perf record: Rename --no-delay to --no-buffering") removed '-D' option and renamed --no-delay into --no-buffering. Fixing that in the attr tests. Signed-off-by:
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Jiri Olsa authored
Following commit: commit 5c0cf224 ("perf record: Store data mmaps for dwarf unwind") have enabled address sampling for dwarf unwind, we need to reflect that in this test by adding ADDR sample_type and enabling mmap_data. Signed-off-by:
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Jiri Olsa authored
There's an event open fallback which set exclude_kernel=1 in case use does not have enough privileges. Adding both 0|1 for this attribute, because we don't know what value it is. Signed-off-by:
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Jiri Olsa authored
The data_equal name fits better to the return value of the function. It's true when the data is equal. Signed-off-by:
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Jiri Olsa authored
Making compare_data global, so it could be used outside the Test class scope to compare command results. Signed-off-by:
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Jiri Olsa authored
We create many test events before the real ones just to test specific features. But there's no way for attr tests to separate those test events from those it needs to check. Adding 'ready' call from the events open interface to trigger/start events collection for attr test. Signed-off-by:
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Jiri Olsa authored
Do not mess up our temp space with files we don't need - failed event open attempts. Signed-off-by:
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Arnaldo Carvalho de Melo authored
It can return NULL, in which case we should bail out and remove the directory created with mkdtemp(), which is stored in the "__tempdir" variable, not in "tempdir". Cc: Masami Hiramatsu <mhiramat@kernel.org> Fixes: 8e5dc848 ("perf test: Add a test case for SDT event") Signed-off-by:
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Arnaldo Carvalho de Melo authored
When the user doesn't specify an event with -e/--event, 'perf record' will use as a default the "cycles" event with the highest level of precision in perf_event_attr.precise_ip, but --no-samples, if present, is incompatible with precise_ip != 0, so use the newly introduced __perf_event__add_default(precise = false) to fix that: Before: # perf record -n usleep 1 Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate. Error: The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (cycles:ppp). /bin/dmesg may provide additional information. No CONFIG_PERF_EVENTS=y kernel support configured? # After: # perf record -n usleep 1 Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate. [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.018 MB perf.data ] [root@jouet /]# perf evlist -v cycles: size: 112, sample_type: IP|TID|TIME|PERIOD, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1 [root@jouet /]# Reported-by:
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Arnaldo Carvalho de Melo authored
There are cases where we want to leave attr.precise_ip as zero, such as when using 'perf record --no-samples', where this would make the kernel return -EINVAL. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-0u2m2a8rqw781r6m8svqyne8@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
There are cases where we want to leave attr.precise_ip as zero, such as when using 'perf record --no-samples', where this would make the kernel return -EINVAL. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-4zq1udecxa51gsapyfwej5fj@git.kernel.orgSigned-off-by:
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Krister Johansen authored
If a stripped binary is placed in the cache, the user is in a situation where there's a cached elf file present, but it doesn't have any symtab to use for name resolution. Grab the debuginfo for binaries that don't end in .ko. This yields a better chance of resolving symbols from older traces. Signed-off-by:
Krister Johansen <kjlx@templeofstupid.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-7-git-send-email-kjlx@templeofstupid.comSigned-off-by:
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Krister Johansen authored
Teach buildid-cache how to add, remove, and update binary objects from other mount namespaces. Allow probe events tracing binaries in different namespaces to add their objects to the probe and build-id caches too. As a handy side effect, this also lets us access SDT probes in binaries from alternate mount namespaces. Signed-off-by:
Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-5-git-send-email-kjlx@templeofstupid.com [ Add util/namespaces.c to tools/perf/util/python-ext-sources, to fix the python binding 'perf test' ] Signed-off-by:
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Krister Johansen authored
Teaches perf how to place a uprobe on a file that's in a different mount namespace. The user must add the probe using the --target-ns argument to perf probe. Once it has been placed, it may be recorded against without further namespace-specific commands. Signed-off-by:
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Krister Johansen authored
If a process is in a mountns and has symbols in /tmp/perf-<pid>.map, look first in the namespace using the tgid for the pidns that the process might be in. If the map isn't found there, try looking in the mountns where perf is running, and use the tgid that's appropriate for perf's pid namespace. If all else fails, use the original pid. This allows us to locate a symbol map file in the mount namespace, if it was generated there. However, we also try the tool's /tmp in case it's there instead. Signed-off-by:
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Krister Johansen authored
Teach perf how to resolve symbols from binaries that are in a different mount namespace from the tool. This allows perf to generate meaningful stack traces even if the binary resides in a different mount namespace from the tool. Signed-off-by:
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Arnaldo Carvalho de Melo authored
And provide an alternative implementation to keep perf building on older distros as we're about to add initial support for namespaces. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krister Johansen <kjlx@templeofstupid.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-bqdwijunhjlvps1ardykhw1i@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To help us provide a simple setns() in older distros. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krister Johansen <kjlx@templeofstupid.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-o10a85kf6j7ig87ep6crab2k@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
In older distros we were not including our copies of unistd_{32,64}.h, as we were relying on the system's asm/unistd.h, and a log time ago the files to be included were asm-{x86_64,i386}/unistd.h. Fix it by also carrying a copy of asm/unistd.h, that will be the same as in modern distros and will allow us to provide missing __NR_setns, for instance, in older distros. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-iwmgm0c4m1ynstktzmkjh8di@git.kernel.orgSigned-off-by: -
Sukadev Bhattiprolu authored
Add currently supported POWER9 PVRs to the mapfile Signed-off-by:
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Shriya <shriyak@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-k1pe02sn5gh6nrzp8ditye94@git.kernel.org [ Fix conflict with a87006fd5629 ("perf pmu-events: Support additional POWER8+ PVR in mapfile") ] Signed-off-by:
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Sukadev Bhattiprolu authored
Add POWER9 PMU events. Signed-off-by:
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Shriya authored
Add support for POWER8+ PVR 004c0100 for Garrison Signed-off-by:
Shriya <shriyak@linux.vnet.ibm.com> Reviewed-by:
Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1497853842-11023-1-git-send-email-shriyak@linux.vnet.ibm.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
By attaching the pid beautifier to the args in the F_SETOWN case and to the syscall return on the F_GETOWN one. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ea1prtqvao87cdrishce7954@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Now that the beautifiers are being split into multiple source and object files, we will need more of them exported, do it for the 'pid' one, will be used to augment the return of some syscalls that may return a 'pid', such as fcntl(fd, F_GETOWN). Will also be used for fcntl(fd, F_SETOWN, pid). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-7gr5nt9p5skp4i1w0ja1w272@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Using the existing 'fd' beautifier, now we can see the path for the just dup'ed fd: 18031.338 ( 0.009 ms): gnome-terminal/2472 fcntl(fd: 55, cmd: DUPFD_CLOEXEC) = 56</memfd:gdk-wayland (deleted)> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-z0ggo126p2eobfwnjw9z16tw@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Now that the beautifiers are being split into multiple source and object files, we will need more of them exported, do it for the 'fd' one, will be used to augment the return of some syscalls that may return an 'fd', such as fcntl(fd, F_DUPFD). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-39sosu12hhywyunqf5s74ewf@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
We need the current thread and the trace internal state so that we can use the fd beautifier to augment syscall returns, so use struct syscall_arg with some fields that make sense on returns (val, thread, trace). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lqag8e86ybidrh5zpqne05ov@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Now it will show 0 or CLOEXEC, the only !0 value returned by the kernel for fcntl(fd, F_GETFD). And for F_SETFD: 6870.267 ( 0.004 ms): make/29812 fcntl(fd: 7</home/acme/git/linux/tools/build/Build.include>, cmd: SETFD, arg: CLOEXEC) = 0 6873.805 ( 0.002 ms): make/29816 fcntl(fd: 6</home/acme/git/linux/tools/build/Makefile.build>, cmd: SETFD, arg: CLOEXEC) = 0 <SNIP> 77986.150 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 45</dev/snd/pcmC1D0p>, cmd: SETFD, arg: CLOEXEC) = 0 77986.271 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 23</dev/snd/controlC1>, cmd: SETFD, arg: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-sz9dob7t4zd6m65femazpaah@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Result: 0.011 (0.001 ms): Chrome_IOThrea/19863 fcntl(fd: 130</dev/shm/.com.google.Chrome.w5UBtZ (deleted)>, cmd: SETFL, arg: RDWR|APPEND|LARGEFILE) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-qgf8ggsq9chnjblxlq954deu@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
We were getting: 62597.859 ( 0.005 ms): TaskSchedulerF/18107 fcntl(fd: 194, cmd: GETFL) = LARGEFILE|RDWR Instead of the more familiar (from looking at strace output): 62597.859 ( 0.005 ms): TaskSchedulerF/18107 fcntl(fd: 194, cmd: GETFL) = RDWR|LARGEFILE Fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-d4d9nd88t4bu9y9odbrcb5z6@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
The return for fcntl(fd, F_GETFL) is the fd file flags, so reuse the one for the open syscall flags parameter: 997.992 (0.002 ms): Chrome_IOThrea/19863 fcntl(fd: 144</dev/shm/.com.google.Chrome.OhA8YL>, cmd: GETFL) = RDWR|LARGEFILE Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-5nn3n4p4yfs6u0leoq880apc@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
In x86_64 /usr/include/bits/fcntl.h sets it to zero, so just undef it and use the standard 00100000 value when decoding the open flags arg. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-k28megguz5snwop9obvn9mcr@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
The open syscall flags beautifier wasn't considering those flags, fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ukzoldh4arrl8x2uwjafd22h@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Things like fcntl will use this to set the right formatter based on its 'cmd' argument. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-4ea3wplb8b4j7aymj0d5uo0h@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
We may want to use this in other contexts, like when formatting the return of fcntl(fd, F_GETFL). Make it have the following signature, so that we can set the formatter for the return argument while processing the arguments of a syscall, as fcntl, for instance, may return fds, flags, etc, so need different return value formatters: size_t formatter(unsigned long value, char *bf, size_t size); This gets so detached from 'perf trace' internals that we may well get all these and move to a tools/lib/syscall_beauty/ library at some point and use it in other tools/ living utilities. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-9aw8t22ztvnkuv26l6sw1c18@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Those introduced by the commit c75b1d94 ("fs: add fcntl() interface for setting/getting write life time hints"), tested using the proggie in that commit comment: # perf trace -e fcntl ./write_hint write_hint.c fcntl: F_GET_RW_HINT: Invalid argument 0.000 ( 0.006 ms): write_hint/7576 fcntl(fd: 3, cmd: GET_RW_HINT, arg: 0x7ffc6c918da0) = -1 EINVAL Invalid argument 0.014 ( 0.004 ms): write_hint/7576 fcntl(fd: 4, cmd: GETFL) = 33794 # perf trace -e fcntl ./write_hint write_hint.c 1 fcntl: F_SET_RW_HINT: Invalid argument 0.000 ( 0.007 ms): write_hint/7578 fcntl(fd: 3, cmd: SET_RW_HINT, arg: 0x7fff03866d70) = -1 EINVAL Invalid argument 0.019 ( 0.002 ms): write_hint/7578 fcntl(fd: 4, cmd: GETFL) = 33794 # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-iacglkc99cchou87k62736dn@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Sometimes it should be printed as an hex number, like with F_SETLK, F_SETLKW and F_GETLK, that treat 'arg' as a struct flock pointer, in other cases it is just an integer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2gykg6enk7vos6q0m97hkgsg@git.kernel.orgSigned-off-by:
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