1perf-mem(1)
2===========
3
4NAME
5----
6perf-mem - Profile memory accesses
7
8SYNOPSIS
9--------
10[verse]
11'perf mem' [<options>] (record [<command>] | report)
12
13DESCRIPTION
14-----------
15"perf mem -t <TYPE> record" runs a command and gathers memory operation data
16from it, into perf.data. Perf record options are accepted and are passed through.
17
18"perf mem -t <TYPE> report" displays the result. It invokes perf report with the
19right set of options to display a memory access profile.
20
21Note that on Intel systems the memory latency reported is the use-latency,
22not the pure load (or store latency). Use latency includes any pipeline
23queueing delays in addition to the memory subsystem latency.
24
25OPTIONS
26-------
27<command>...::
28	Any command you can specify in a shell.
29
30-t::
31--type=::
32	Select the memory operation type: load or store (default: load)
33
34-D::
35--dump-raw-samples=::
36	Dump the raw decoded samples on the screen in a format that is easy to parse with
37	one sample per line.
38
39-x::
40--field-separator::
41	Specify the field separator used when dump raw samples (-D option). By default,
42	The separator is the space character.
43
44-C::
45--cpu-list::
46	Restrict dump of raw samples to those provided via this option. Note that the same
47	option can be passed in record mode. It will be interpreted the same way as perf
48	record.
49
50SEE ALSO
51--------
52linkperf:perf-record[1], linkperf:perf-report[1]
53