6 perf-list - List all symbolic event types
11 'perf list' [hw|sw|cache|tracepoint|event_glob]
15 This command displays the symbolic event types which can be selected in the
16 various perf commands with the -e option.
21 Events can optionally have a modifer by appending a colon and one or
22 more modifiers. Modifiers allow the user to restrict when events are
23 counted with 'u' for user-space, 'k' for kernel, 'h' for hypervisor.
24 Additional modifiers are 'G' for guest counting (in KVM guests) and 'H'
25 for host counting (not in KVM guests).
27 The 'p' modifier can be used for specifying how precise the instruction
28 address should be. The 'p' modifier is currently only implemented for
29 Intel PEBS and can be specified multiple times:
30 0 - SAMPLE_IP can have arbitrary skid
31 1 - SAMPLE_IP must have constant skid
32 2 - SAMPLE_IP requested to have 0 skid
33 3 - SAMPLE_IP must have 0 skid
35 The PEBS implementation now supports up to 2.
37 RAW HARDWARE EVENT DESCRIPTOR
38 -----------------------------
39 Even when an event is not available in a symbolic form within perf right now,
40 it can be encoded in a per processor specific way.
42 For instance For x86 CPUs NNN represents the raw register encoding with the
43 layout of IA32_PERFEVTSELx MSRs (see [Intel® 64 and IA-32 Architectures Software Developer's Manual Volume 3B: System Programming Guide] Figure 30-1 Layout
44 of IA32_PERFEVTSELx MSRs) or AMD's PerfEvtSeln (see [AMD64 Architecture Programmer’s Manual Volume 2: System Programming], Page 344,
45 Figure 13-7 Performance Event-Select Register (PerfEvtSeln)).
49 If the Intel docs for a QM720 Core i7 describe an event as:
51 Event Umask Event Mask
52 Num. Value Mnemonic Description Comment
54 A8H 01H LSD.UOPS Counts the number of micro-ops Use cmask=1 and
55 delivered by loop stream detector invert to count
58 raw encoding of 0x1A8 can be used:
60 perf stat -e r1a8 -a sleep 1
61 perf record -e r1a8 ...
63 You should refer to the processor specific documentation for getting these
64 details. Some of them are referenced in the SEE ALSO section below.
69 Without options all known events will be listed.
71 To limit the list use:
73 . 'hw' or 'hardware' to list hardware events such as cache-misses, etc.
75 . 'sw' or 'software' to list software events such as context switches, etc.
77 . 'cache' or 'hwcache' to list hardware cache events such as L1-dcache-loads, etc.
79 . 'tracepoint' to list all tracepoint events, alternatively use
80 'subsys_glob:event_glob' to filter by tracepoint subsystems such as sched,
83 . If none of the above is matched, it will apply the supplied glob to all
84 events, printing the ones that match.
86 One or more types can be used at the same time, listing the events for the
91 linkperf:perf-stat[1], linkperf:perf-top[1],
92 linkperf:perf-record[1],
93 http://www.intel.com/Assets/PDF/manual/253669.pdf[Intel® 64 and IA-32 Architectures Software Developer's Manual Volume 3B: System Programming Guide],
94 http://support.amd.com/us/Processor_TechDocs/24593.pdf[AMD64 Architecture Programmer’s Manual Volume 2: System Programming]