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72 lines
3.2 KiB
Plaintext
72 lines
3.2 KiB
Plaintext
The following is a demonstration of the dappprof command,
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This is the usage for version 0.60,
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# dappprof -h
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USAGE: dappprof [-cehoTU] [-u lib] { -p PID | command }
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-p PID # examine this PID
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-a # print all details
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-c # print syscall counts
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-e # print elapsed times (us)
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-o # print on cpu times
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-T # print totals
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-u lib # trace this library instead
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-U # trace all libraries + user funcs
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-b bufsize # dynamic variable buf size
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eg,
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dappprof df -h # run and examine "df -h"
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dappprof -p 1871 # examine PID 1871
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dappprof -ap 1871 # print all data
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The following shows running dappprof with the "banner hello" command.
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Elapsed and on-cpu times are printed (-eo), as well as counts (-c) and
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totals (-T),
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# dappprof -eocT banner hello
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# # ###### # # ####
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# # # # # # #
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###### ##### # # # #
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# # # # # # #
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# # # # # # #
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# # ###### ###### ###### ####
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CALL COUNT
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__fsr 1
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main 1
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banprt 1
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banner 1
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banset 1
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convert 5
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banfil 5
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TOTAL: 15
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CALL ELAPSED
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banset 37363
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banfil 147407
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convert 149606
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banprt 423507
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banner 891088
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__fsr 1694349
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TOTAL: 3343320
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CALL CPU
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banset 7532
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convert 8805
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banfil 11092
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__fsr 15708
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banner 48696
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banprt 388853
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TOTAL: 480686
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The above output has analysed user functions (the default). It makes it
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easy to identify which function is being called the most (COUNT), which
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is taking the most time (ELAPSED), and which is consuming the most CPU (CPU).
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These times are totals for all the functions called.
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