| /linux-6.12.1/Documentation/core-api/ |
| D | this_cpu_ops.rst | 8 this_cpu operations are a way of optimizing access to per cpu
11 the cpu permanently stored the beginning of the per cpu area for a
14 this_cpu operations add a per cpu variable offset to the processor
15 specific per cpu base and encode that operation in the instruction
16 operating on the per cpu variable.
24 Read-modify-write operations are of particular interest. Frequently
32 synchronization is not necessary since we are dealing with per cpu
37 Please note that accesses by remote processors to a per cpu area are
65 ------------------------------------
68 per cpu area. It is then possible to simply use the segment override
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/broadwellde/ |
| D | bdwde-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/broadwell/ |
| D | bdw-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/tigerlake/ |
| D | tgl-metrics.json | 3 "BriefDescription": "C10 residency percent per package",
4 "MetricExpr": "cstate_pkg@c10\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/haswell/ |
| D | hsw-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/rocketlake/ |
| D | rkl-metrics.json | 3 "BriefDescription": "C10 residency percent per package",
4 "MetricExpr": "cstate_pkg@c10\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/icelake/ |
| D | icl-metrics.json | 3 "BriefDescription": "C10 residency percent per package",
4 "MetricExpr": "cstate_pkg@c10\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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|
| /linux-6.12.1/tools/power/x86/x86_energy_perf_policy/ |
| D | x86_energy_perf_policy.8 | 1 .\" This page Copyright (C) 2010 - 2015 Len Brown <len.brown@intel.com>
5 x86_energy_perf_policy \- Manage Energy vs. Performance Policy via x86 Model Specific Registers
10 .RB "scope: \-\-cpu\ cpu-list | \-\-pkg\ pkg-list"
12 .RB "cpu-list, pkg-list: # | #,# | #-# | all"
14 .RB "field: \-\-all | \-\-epb | \-\-hwp-epp | \-\-hwp-min | \-\-hwp-max | \-\-hwp-desired"
16 .RB "other: (\-\-force | \-\-hwp-enable | \-\-turbo-enable) value)"
18 .RB "value: # | default | performance | balance-performance | balance-power | power"
21 displays and updates energy-performance policy settings specific to
23 updates, no matter if the Linux cpufreq sub-system is enabled or not.
27 such as how aggressively the hardware enters and exits CPU idle states (C-states)
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/skylake/ |
| D | skl-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/ivybridge/ |
| D | ivb-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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| /linux-6.12.1/Documentation/virt/ |
| D | guest-halt-polling.rst | 15 2) The VM-exit cost can be avoided.
25 ("per-cpu guest_halt_poll_ns"), which is adjusted by the algorithm
42 Division factor used to shrink per-cpu guest_halt_poll_ns when
49 Multiplication factor used to grow per-cpu guest_halt_poll_ns
50 when event occurs after per-cpu guest_halt_poll_ns
57 The per-cpu guest_halt_poll_ns eventually reaches zero
59 per-cpu guest_halt_poll_ns when growing. This can
70 to avoid it (per-cpu guest_halt_poll_ns will remain
82 - Care should be taken when setting the guest_halt_poll_ns parameter as a
83 large value has the potential to drive the cpu usage to 100% on a machine
|
| /linux-6.12.1/Documentation/trace/ |
| D | events-kmem.rst | 8 - Slab allocation of small objects of unknown type (kmalloc)
9 - Slab allocation of small objects of known type
10 - Page allocation
11 - Per-CPU Allocator Activity
12 - External Fragmentation
40 These events are similar in usage to the kmalloc-related events except that
50 mm_page_alloc_zone_locked page=%p pfn=%lu order=%u migratetype=%d cpu=%d percpu_refill=%d
56 the per-CPU allocator (high performance) or the buddy allocator.
60 amounts of activity imply high activity on the zone->lock. Taking this lock
72 contention on the lruvec->lru_lock.
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| /linux-6.12.1/Documentation/translations/it_IT/locking/ |
| D | locktypes.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 .. include:: ../disclaimer-ita.rst
17 - blocchi ad attesa con sospensione
18 - blocchi locali per CPU
19 - blocchi ad attesa attiva
28 ---------------------------------
41 - mutex
42 - rt_mutex
43 - semaphore
44 - rw_semaphore
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/broadwellx/ |
| D | bdx-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/ivytown/ |
| D | ivt-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/sapphirerapids/ |
| D | spr-metrics.json | 3 "BriefDescription": "C1 residency percent per core",
4 "MetricExpr": "cstate_core@c1\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C6 residency percent per core",
18 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per package",
25 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
31 "BriefDescription": "Uncore frequency per die [GHZ]",
37 …"BriefDescription": "Cycles per instruction retired; indicating how much time each executed instru…
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/sandybridge/ |
| D | snb-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
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| /linux-6.12.1/tools/perf/tests/shell/lib/ |
| D | stat_output.sh | 2 # SPDX-License-Identifier: GPL-2.0
7 [ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
13 echo -n "Checking $1 output: no args "
15 commachecker --no-args
21 echo -n "Checking $1 output: system wide "
27 perf stat -a $2 true
28 commachecker --system-wide
34 echo -n "Checking $1 output: system wide no aggregation "
40 perf stat -A -a --no-merge $2 true
41 commachecker --system-wide-no-aggr
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/emeraldrapids/ |
| D | emr-metrics.json | 3 "BriefDescription": "C1 residency percent per core",
4 "MetricExpr": "cstate_core@c1\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C6 residency percent per core",
18 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per package",
25 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
31 "BriefDescription": "Uncore frequency per die [GHZ]",
37 …"BriefDescription": "Cycles per instruction retired; indicating how much time each executed instru…
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| /linux-6.12.1/tools/perf/Documentation/ |
| D | perf-stat.txt | 1 perf-stat(1)
5 ----
6 perf-stat - Run a command and gather performance counter statistics
9 --------
11 'perf stat' [-e <EVENT> | --event=EVENT] [-a] <command>
12 'perf stat' [-e <EVENT> | --event=EVENT] [-a] \-- <command> [<options>]
13 'perf stat' [-e <EVENT> | --event=EVENT] [-a] record [-o file] \-- <command> [<options>]
14 'perf stat' report [-i file]
17 -----------
23 -------
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| /linux-6.12.1/tools/perf/pmu-events/arch/x86/cascadelakex/ |
| D | clx-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/icelakex/ |
| D | icx-metrics.json | 3 "BriefDescription": "C1 residency percent per core",
4 "MetricExpr": "cstate_core@c1\\-residency@ / TSC",
10 "BriefDescription": "C2 residency percent per package",
11 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
17 "BriefDescription": "C6 residency percent per core",
18 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per package",
25 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
31 "BriefDescription": "Uncore frequency per die [GHZ]",
37 …"BriefDescription": "Cycles per instruction retired; indicating how much time each executed instru…
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|
| /linux-6.12.1/kernel/events/ |
| D | hw_breakpoint.c | 1 // SPDX-License-Identifier: GPL-2.0+
15 * HW_breakpoint: a unified kernel/user-space hardware breakpoint facility,
16 * using the CPU's debug registers.
17 * This file contains the arch-independent routines.
24 #include <linux/cpu.h>
32 #include <linux/percpu-rwsem.h>
51 * Per-CPU constraints data.
54 /* Number of pinned CPU breakpoints in a CPU. */
56 /* Histogram of pinned task breakpoints in a CPU. */
62 static struct bp_cpuinfo *get_bp_info(int cpu, enum bp_type_idx type) in get_bp_info() argument
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|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/skylakex/ |
| D | skx-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|
| /linux-6.12.1/tools/perf/pmu-events/arch/x86/haswellx/ |
| D | hsx-metrics.json | 3 "BriefDescription": "C2 residency percent per package",
4 "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
10 "BriefDescription": "C3 residency percent per core",
11 "MetricExpr": "cstate_core@c3\\-residency@ / TSC",
17 "BriefDescription": "C3 residency percent per package",
18 "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
24 "BriefDescription": "C6 residency percent per core",
25 "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
31 "BriefDescription": "C6 residency percent per package",
32 "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
[all …]
|