Lines Matching +full:- +full:- +full:max +full:- +full:time

1 .TH klockstat 8  "2019-10-22" "USER COMMANDS"
3 klockstat \- Traces kernel mutex lock events and display locks statistics. Uses Linux eBPF/bcc.
5 .B klockstat [\-h] [\-i] [\-n] [\-s] [\-c] [\-S FIELDS] [\-p] [\-t] [\-d DURATION]
10                                   Caller   Avg Spin  Count   Max spin Total spin
19                                   Caller   Avg Hold  Count   Max hold Total hold
32 amount of time it took to acquired given lock.
34   'Caller'       - symbol acquiring the mutex
35   'Average Spin' - average time to acquire the mutex
36   'Count'        - number of times mutex was acquired
37   'Max spin'     - maximum time to acquire the mutex
38   'Total spin'   - total time spent in acquiring the mutex
41 amount of time it took to hold given lock.
43   'Caller'       - symbol holding the mutex
44   'Average Hold' - average time mutex was held
45   'Count'        - number of times mutex was held
46   'Max hold'     - maximum time mutex was held
47   'Total hold'   - total time spent in holding the mutex
57 \-h
60 \-i SEC
63 \-c CALLER
66 \-S FIELDS
67 sort data on specific columns defined by FIELDS string (by default the data is sorted by Max column…
72   acq_max      for 'Max spin' column
76   hld_max      for 'Max hold' column
83 \-n COUNT
86 \-s COUNT
89 \-p PID
90 Trace this process ID only (filtered in-kernel).
92 \-t TID
93 Trace this thread ID only (filtered in-kernel).
95 \-d DURATION
98 \-\-stack-storage-size STACK_STORAGE_SIZE
104 .B klockstat -S acq_count
107 Sort lock held results on total held time:
109 .B klockstat -S hld_total
114 .B klockstat -S acq_count,hld_total
124 .B klockstat -d 5
129 .B klockstat -i 5
134 .B klockstat -p 123
139 .B klockstat -t 321
144 .B klockstat -c pipe_
149 .B klockstat -n 3
154 .B klockstat -n 1 -s 10
156 Tracing lock events... Hit Ctrl-C to end.
158                                   Caller   Avg Spin  Count   Max spin Total spin
168                                   Caller   Avg Hold  Count   Max hold Total hold
186 Unstable - in development.