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/tools/power/cpupower/
DToDo1 ToDos sorted by priority:
9 -> Is by design racy with BIOS, but could be added
/tools/scripts/
Dutilities.mak50 # in an `awk' program that is delimited by shell
67 # delimited by shell single-quotes, so be wary
72 # overcome by putting a space between `{' and `gsub').
83 # embedding in a shell string that is delimited by
108 # At least GNU make gets confused by expanding a newline
113 # This function avoids the problem by producing a string
141 # (It's necessary to use `sh -c' because GNU make messes up by
151 # (It's necessary to use `sh -c' because GNU make messes up by
163 # the `command -v' is defined by POSIX, but it's not
166 # by the presence of a leading `/'.
/tools/testing/selftests/rcutorture/doc/
DTINY_RCU.txt19 In common code tested by TREE_RCU test cases.
39 All forced by CONFIG_TINY_RCU.
/tools/perf/Documentation/
Dcallchain-overhead-calculation.txt4 perf collects callchains. The 'self' overhead is simply calculated by
9 The 'children' overhead is calculated by adding all period values of
104 Since v3.16 the 'children' overhead is shown by default and the output
105 is sorted by its values. The 'children' overhead is disabled by
106 specifying --no-children option on the command line or by adding
Dperf.data-file-format.txt5 This document describes the on-disk perf.data format, generated by perf record
6 or perf inject and consumed by the other perf tools.
8 On a high level perf.data contains the events generated by the PMUs, plus metadata.
46 The header is followed by different optional headers, described by the bits set
78 is defined by header.size (see perf_event.h). Each event defines a ELF build id
80 assigned by the linker to an executable.
187 A list of PMU structures, defining the different PMUs supported by perf.
253 describing events. This matches the format generated by the kernel.
270 by an ID. This can be either through the PERF_SAMPLE_ID or the
274 IDENTIFIER is only supported by newer Linux kernels.
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Dperf-help.txt23 up. The 'man' program is used by default for this purpose, but this
24 can be overridden by other options or configuration variables.
Dintel-pt.txt16 Trace data is collected by 'perf record' and stored within the perf.data file.
25 samples output by perf hardware events, for example as though the "instructions"
97 An interesting field that is not printed by default is 'flags' which can be
116 by inability to access the executed image, self-modified or JIT-ed code, or the
132 selected by providing the PMU name followed by the "config" separated by slashes.
149 passed to the kernel by the perf_event_open system call. They correspond to bit
186 'h', 'G' and 'H' are for virtualization which is not supported by Intel PT.
240 Support for psb_period is indicated by:
247 Valid values are given by:
284 Support for this feature is indicated by:
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Dperf-record.txt43 values for each of 'config', 'config1' and 'config2' are defined by
61 the value set by the params will be overridden.
64 configuration parameters. Any configuration parameter preceded by
73 understood and supported by the PMU driver.
85 - a group of events surrounded by a pair of brace ("{event1,event2,...}").
86 Each event is separated by commas and the group should be quoted to
103 address filters by specifying a non-zero value in
123 <start> can also be specified by providing the name of a symbol. If the
124 symbol name is not unique, it can be disambiguated by inserting #n where
126 select only a global symbol. <size> can also be specified by providing
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Dperf-probe.txt29 This command defines dynamic tracepoint events, by symbol and registers
30 without debuginfo, or by C expressions (C line numbers, C function names,
152 Probe points are defined by following syntax.
168 … be set the name of the probed function. You can also specify a group name by 'GROUP', if omitted,…
172 It is also possible to specify a probe point by the source line number or lazy matching by using 'S…
174 'SDTEVENT' and 'PROVIDER' is the pre-defined event name which is defined by user SDT (Statically De…
175 …event, the target binary (on which SDT events are defined) must be scanned by linkperf:perf-buildi…
193 …use 's' or 'u' to specify only signedness and leave its size auto-detected by perf probe. Moreover…
201 Line range is described by following syntax.
209 many lines to show by using 'NUM'. Moreover, 'FUNC@SRC' combination is good
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Dperf-annotate.txt6 perf-annotate - Read perf.data (created by perf record) and display annotated code
73 used. This interfaces starts by centering on the line with more
88 Interleave source code with assembly code. Enabled by default,
Dperf-buildid-cache.txt17 the space used by the cache, etc.
19 record it along with the buildid-cache, which will be used by perf-probe.
56 exactly same build-id, that is replaced by new one. It can be used
Dperf-kmem.txt43 migtype, gfp' for page. This option should be preceded by one of the
60 Show live page stat. The perf kmem shows total allocation stat by
Dperf-kvm.txt47 for use by perf report. As buildid is read from /sys/kernel/notes in os, then
81 root directories under <path> by a specific filesystem access method,
110 Sorting key. Possible values: sample (default, sort by samples
111 number), time (sort by average time).
147 Sorting key. Possible values: sample (default, sort by samples
148 number), time (sort by average time).
Dperf-script-python.txt35 scripts listed by that command.
75 that, but first we need to record the data that will be processed by
81 allowable by perf. These individual syscall events will however be
119 # perf script event handlers, generated by perf script -g python
162 At the top is a comment block followed by some import statements and a
185 The script generated by -g option simply prints a line for each
235 been counted. A hash table indexed by syscall id is a good way to
237 we simply increment a count associated with that hash entry indexed by
269 displayed after all the events in the trace have been processed, by
323 interested in by looking at the list of available events shown by
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Dperf-trace.txt56 Record events in threads owned by uid. Name or number.
96 Show process COMM right beside its ID, on by default, disable with --no-comm.
100 Show only a summary of syscalls by thread with min, max, and average times
105 Show all syscalls followed by a summary by thread with min, max, and
118 Trace system calls. This options is enabled by default.
151 below the specified depth will be ignored. Disabled by default.
/tools/perf/util/
Dpython-ext-sources2 # List of files needed by perf python extension
5 # processed by Makefile and util/setup.py accordingly.
/tools/perf/scripts/perl/bin/
Drw-by-pid-report3 perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/rw-by-pid.pl
Drw-by-file-report10 perf script $@ -s "$PERF_EXEC_PATH"/scripts/perl/rw-by-file.pl $comm
/tools/perf/scripts/python/bin/
Dsyscall-counts-by-pid-report10 perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/syscall-counts-by-pid.py $comm
Dfailed-syscalls-by-pid-report10 perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/failed-syscalls-by-pid.py $comm
/tools/perf/tests/attr/
Dtest-stat-C07 # events are enabled by default when attached to cpu
Dtest-record-C012 # + PERF_SAMPLE_CPU added by -C 0
/tools/usb/usbip/
DCOPYING17 using it. (Some other Free Software Foundation software is covered by
45 software. If the software is modified by someone else and passed on, we
47 that any problems introduced by others will not reflect on the original
50 Finally, any free program is threatened constantly by software
63 a notice placed by the copyright holder saying it may be distributed
73 covered by this License; they are outside its scope. The act of
76 Program (independent of having been made by running the Program).
125 your rights to work written entirely by you; rather, the intent is to
166 If distribution of executable or object code is made by offering
183 prohibited by law if you do not accept this License. Therefore, by
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/tools/perf/scripts/perl/Perf-Trace-Util/
DREADME13 The Perl->C perf interface is completely driven by Context.xs. If you
50 Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com>
57 GNU General Public License ("GPL") version 2 as published by the Free
/tools/virtio/virtio-trace/
DREADME8 - write trace data to stdout by using -o option
9 - controlled by start/stop orders from a Host
109 the guest will stop by specification of chardev in QEMU. This blocking mode may
112 4) Start to read trace data by ordering from a host
116 5) Stop to read trace data by ordering from a host

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