perf/Documentation/perf-kwork.txt

1 perf-kwork(1)
5 ----
6 perf-kwork - Tool to trace/measure kernel work properties (latencies)
9 --------
14 -----------
20   'perf kwork report' to report the per kwork runtime.
22   'perf kwork latency' to report the per kwork latencies.
29         perf kwork record -- sleep 1
31         perf kwork report -b
33         perf kwork latency -b
36         perf kwork top -b
43    -----------------  -----------------  ------  -------------------------  ----------  ----------
62 -------
63 -D::
64 --dump-raw-trace=::
67 -f::
68 --force::
71 -k::
72 --kwork::
75 -v::
76 --verbose::
80 ----------------------------
82 -b::
83 --use-bpf::
86 -C::
87 --cpu::
90 -i::
91 --input::
94 -n::
95 --name::
98 -s::
99 --sort::
102 -S::
103 --with-summary::
106 --time::
109 	string is ',x.y') then analysis starts at the beginning of the file. If
110 	stop time is not given (i.e, time string is 'x.y,') then analysis goes
114 ----------------------------
116 -b::
117 --use-bpf::
120 -C::
121 --cpu::
124 -i::
125 --input::
128 -n::
129 --name::
132 -s::
133 --sort::
136 --time::
139 	string is ',x.y') then analysis starts at the beginning of the file. If
140 	stop time is not given (i.e, time string is 'x.y,') then analysis goes
144 ---------------------------------
146 -C::
147 --cpu::
150 -g::
151 --call-graph::
154 -i::
155 --input::
158 -k::
159 --vmlinux=<file>::
162 -n::
163 --name::
166 --kallsyms=<file>::
169 --max-stack::
172 --symfs=<directory>::
175 --time::
178 	string is ',x.y') then analysis starts at the beginning of the file. If
179 	stop time is not given (i.e, time string is 'x.y,') then analysis goes
183 ---------------------------------
185 -b::
186 --use-bpf::
189 -C::
190 --cpu::
193 -i::
194 --input::
197 -n::
198 --name::
201 -s::
202 --sort::
205 --time::
208 	string is ',x.y') then analysis starts at the beginning of the file. If
209 	stop time is not given (i.e, time string is 'x.y,') then analysis goes
213 --------
214 linkperf:perf-record[1]