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/linux/tools/lib/perf/Documentation/
A Dlibperf-counting.txt1 libperf-counting(7)
6 libperf-counting - counting interface
10 The counting interface provides API to measure and get count for specific perf events.
12 The following test tries to explain count on `counting.c` example.
14 It is by no means complete guide to counting, but shows libperf basic API for counting.
16 The `counting.c` comes with libperf package and can be compiled and run like:
20 $ gcc -o counting counting.c -lperf
21 $ sudo ./counting
29 The `counting.c` example monitors two events on the current process and displays
158 From this moment events are counting and we can do our workload.
A DMakefile8 MAN7_TXT = libperf-counting.txt libperf-sampling.txt
/linux/Documentation/ABI/testing/
A Dsysfs-bus-iio-timer-stm32107 When counting up the counter starts from 0 and fires an
109 When counting down the counter start from preset value
123 counting direction is set by in_count0_count_direction
131 level is high else counting is disabled.
149 counting direction is set by in_count0_count_direction
A Dsysfs-bus-counter37 count = ceiling when counting up, and at count = floor
38 when counting down. At either of these limits, the
39 counting is resumed only when the count direction is
52 counting up, while the counter is set to the Count Y
53 ceiling value at count = floor when counting down; the
77 their counting. For example, quadrature encoding counters can
A Dsysfs-class-net322 32-bit unsigned integer counting the number of times the link has
330 32-bit unsigned integer counting the number of times the link has
338 32-bit unsigned integer counting the number of times the link has
/linux/tools/perf/Documentation/
A Dperf-list.txt54 u - user-space counting
55 k - kernel counting
56 h - hypervisor counting
57 I - non idle counting
58 G - guest counting (in KVM guests)
59 H - host counting (not in KVM guests)
88 perf record -a -e cpu-cycles:p ... # use ibs op counting cycles
90 perf record -a -e r0C1:p ... # use ibs op counting micro-ops
/linux/Documentation/arm64/
A Dperf.rst63 must enable/disable counting on the entry and exit to the guest. This is
85 able to eliminate counters counting host events on the boundaries of guest
86 entry/exit when counting guest events by filtering out EL2 for
/linux/Documentation/devicetree/bindings/perf/
A Dnds32v3-pmu.txt3 NDS32 core have a PMU for counting cpu and cache events like cache misses.
/linux/Documentation/devicetree/bindings/arc/
A Darchs-pct.txt3 The ARC HS can be configured with a pipeline performance monitor for counting
A Dpct.txt3 The ARC700 can be configured with a pipeline performance monitor for counting
/linux/Documentation/misc-devices/
A Dapds990x.rst55 RW - enable / disable chip. Uses counting logic
109 RW - enable / disable proximity - uses counting logic
A Dbh1770glc.rst57 Uses counting logic
110 Uses counting logic
/linux/tools/perf/
A Ddesign.txt152 Counters come in two flavours: counting counters and sampling
153 counters. A "counting" counter is one that is used for counting the
225 way to request that counting of events be restricted to times when the
229 to request counting of events restricted to guest and host contexts when
433 non-leader stops that counter from counting but doesn't affect any
/linux/Documentation/admin-guide/perf/
A Dimx-ddr.rst13 interrupt is raised. If any other counter overflows, it continues counting, and
70 counting the number of bytes (as opposed to the number of bursts) from DDR
A Darm_dsu_pmu.rst7 allows counting the various events related to the L3 cache, Snoop Control Unit
/linux/drivers/perf/
A DKconfig25 CCI-400 provides 4 independent event counters counting events related
79 system, control logic. The PMU allows counting various events related
/linux/Documentation/devicetree/bindings/counter/
A Dinterrupt-counter.yaml18 take precedence for counting interrupts.
/linux/Documentation/devicetree/bindings/watchdog/
A Dgpio-wdt.txt11 - level: Low or high level starts counting WDT timeout,
A Datmel,sama5d4-wdt.yaml44 watchdog not counting when the CPU is in idle state, therefore the
A Datmel-wdt.txt31 watchdog not counting when the CPU is in idle state, therefore the
/linux/Documentation/RCU/
A Drcuref.rst16 Reference counting on elements of lists which are protected by traditional
157 reference counting of struct pid, while the pattern in listing B is used by
/linux/drivers/iommu/intel/
A Ddebugfs.c585 int counting; in dmar_perf_latency_write() local
596 if (kstrtoint(buf, 0, &counting)) in dmar_perf_latency_write()
599 switch (counting) { in dmar_perf_latency_write()
/linux/Documentation/devicetree/bindings/rtc/
A Drenesas,sh-rtc.yaml33 # first (if it exists). Additionally, potential clock counting sources
/linux/Documentation/core-api/
A Dpin_user_pages.rst45 uses a different reference counting technique.
59 GUP_PIN_COUNTING_BIAS scheme is not used. Instead, an exact form of pin counting
63 This approach for compound pages avoids the counting upper limit problems that
267 dump_page() has been enhanced slightly, to handle these new counting fields, and
/linux/Documentation/driver-api/
A Dbasics.rst75 Reference counting

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