git://sourceware.org / systemtap.git / blame
| Commit | Line | Data |
|---|---|---|
| e25a872f | 1 | .\" -*- nroff -*- |
| f7470174 | 2 | .TH STAP\-MERGE 1 |
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3 | .SH NAME |
| 4 | stap\-merge \- systemtap per-cpu binary merger | |
| 5 | ||
| 6 | .\" macros | |
| 7 | .de SAMPLE | |
| 8 | .br | |
| 9 | .RS | |
| 10 | .nf | |
| 11 | .nh | |
| 12 | .. | |
| 13 | .de ESAMPLE | |
| 14 | .hy | |
| 15 | .fi | |
| 16 | .RE | |
| 17 | .. | |
| 18 | ||
| 19 | .SH SYNOPSIS | |
| 20 | ||
| 21 | .br | |
| f7470174 | 22 | .B stap\-merge |
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23 | [ |
| 24 | .I OPTIONS | |
| 25 | ] | |
| 26 | [ | |
| 27 | .I INPUT FILENAMES | |
| 28 | ] | |
| 29 | ||
| 30 | .SH DESCRIPTION | |
| 31 | ||
| f7470174 | 32 | The stap\-merge executable applies when the \-b option has been used |
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33 | while running a |
| 34 | .IR stap | |
| 35 | script. The \-b option will generate files | |
| f7470174 JS |
36 | per\-cpu, based on the timestamp field. Then stap\-merge will |
| 37 | merge and sort through the per-cpu files based on the timestamp | |
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38 | field. |
| 39 | ||
| 40 | .SH OPTIONS | |
| 41 | ||
| 42 | The systemtap merge executable supports the following options. | |
| 43 | .TP | |
| 44 | .B \-v | |
| 45 | Verbose mode, displays three extra fields per set of collected data. | |
| 46 | .SAMPLE | |
| 47 | .BR [cpu number, sequence number of data, the length of the data set] | |
| 48 | .ESAMPLE | |
| 49 | .TP | |
| 50 | .BI \-o " OUTPUT_FILENAME" | |
| 51 | ||
| 52 | Specify the name of the file you would like the output to be | |
| 53 | redirected into. If this option is not specified than the | |
| 54 | output will be pushed to standard out. | |
| 55 | ||
| 56 | .SH EXAMPLES | |
| 57 | .SAMPLE | |
| f7470174 | 58 | $ stap \-v \-b \-e 'probe syscall.open { printf("%s(%d) open\\n", |
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59 | execname(), pid()) }' |
| 60 | ||
| 61 | .ESAMPLE | |
| 62 | ||
| 63 | This should result in several | |
| 64 | .I stpd_cpu | |
| 65 | files (each labled with a number | |
| 66 | representing which cpu the file was produced from). | |
| 67 | ||
| 68 | .SAMPLE | |
| f7470174 | 69 | $ stap\-merge \-v stpd_cpu0 stpd_cpu1 |
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70 | |
| 71 | .ESAMPLE | |
| 72 | ||
| f7470174 | 73 | Running the stap\-merge program in the same directory as the stap |
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74 | script earlier in the example, will produce an ordered sequence of |
| 75 | packets with the three part label for each set of data. This | |
| 76 | result will be pushed through the standard output. An output file | |
| f7470174 | 77 | could have been specified using the "\-o" option. |
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78 | |
| 79 | .SH FILES | |
| 80 | ||
| 81 | .TP | |
| 82 | Important files and their corresponding paths can be located in the | |
| 83 | stappaths (7) manual page. | |
| 84 | ||
| 85 | .SH SEE ALSO | |
| 86 | .IR stapprobes (3stap), | |
| 87 | .IR stapfuncs (3stap), | |
| 88 | .IR stappaths (7), | |
| 89 | .IR staprun (8), | |
| 90 | .IR stapvars (3stap), | |
| 91 | .IR stapex (3stap), | |
| f7470174 | 92 | .IR stap\-server (8), |
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93 | .IR gdb (1) |
| 94 | ||
| 95 | .SH BUGS | |
| 96 | Use the Bugzilla link of the project web page or our mailing list. | |
| 97 | .nh | |
| 306dd4f8 | 98 | .BR http://sourceware.org/systemtap/ , <systemtap@sourceware.org> . |
| e25a872f | 99 | .hy |