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1 | |
2 | QUICKSTART |
3 | |
4 | How to use LTTng and LTTV in a few lines : |
5 | |
6 | These operations are made for installing LTTng 0.2 on a linux 2.6.12-rc2-mm2 |
7 | kernel. Change the versions to fit your needs. |
8 | |
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9 | Author : Mathieu Desnoyers, September 2005 |
10 | |
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11 | |
12 | * Getting the LTTng packages |
13 | |
14 | su - |
15 | mkdir /usr/src/lttng |
16 | cd /usr/src/lttng |
17 | (see http://ltt.polymtl.ca/lttng for package listing) |
18 | wget http://ltt.polymtl.ca/lttng/lttng-modules-0.2.tar.bz2 |
19 | wget http://ltt.polymtl.ca/lttng/patch-2.6.12-rc4-mm2-lttng-0.2.bz2 |
20 | bzip2 -cd lttng-modules-0.2.tar.bz2 | tar xvof - |
21 | |
22 | |
23 | * Getting LTTng kernel sources |
24 | |
25 | su - |
26 | cd /usr/src |
27 | wget http://kernel.org/pub/linux/kernel/v2.6/testing/linux-2.6.12-rc4.tar.bz2 |
28 | wget http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc4/2.6.12-rc4-mm2/2.6.12-rc4-mm2.bz2 |
29 | bzip2 -cd linux-2.6.12-rc4.tar.bz2 | tar xvof - |
30 | cd linux-2.6.12-rc4 |
31 | bzip2 -cd ../2.6.12-rc4-mm2.bz2 | patch -p1 |
32 | bzip2 -cd /usr/src/lttng/patch-2.6.12-rc4-mm2-lttng-0.2.bz2 | patch -p1 |
33 | cd .. |
34 | mv linux-2.6.12-rc4 linux-2.6.12-rc4-mm2-lttng-0.2 |
35 | |
36 | |
37 | * Installing a LTTng kernel |
38 | |
39 | su - |
40 | cd /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2 |
41 | make menuconfig |
42 | General setup |
43 | * Linux Trace Toolkit Instrumentation Support |
44 | M or * Linux Trace Toolkit Tracer |
45 | do NOT activate (not ready yet) : |
46 | Align Linux Trace Toolkit Traces |
47 | Activate Linux Trace Toolkit Heartbeat Timer |
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48 | IMPORTANT : This is enabled by default : you must disable it! |
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49 | make install |
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50 | make modules_install |
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51 | reboot |
52 | |
53 | |
54 | * Install the ltt-modules |
55 | |
56 | su - |
57 | cd /usr/src/lttng/lttng-modules-0.2 |
58 | KERNELDIR=/usr/src/linux-2.6.12-rc4-mm2-lttng-0.2 make |
59 | KERNELDIR=/usr/src/linux-2.6.12-rc4-mm2-lttng-0.2 make modules_install |
60 | |
61 | note : at this stage, you might want to execute |
62 | modprobe ltt-control |
63 | |
64 | and you might also want to do this : |
65 | echo ltt-control >> /etc/modules |
66 | |
67 | |
68 | * Getting and installing the LTTV package |
69 | |
70 | su - |
71 | cd /usr/src |
72 | wget http://ltt.polymtl.ca/packages/LinuxTraceToolkitViewer-0.5-16092005.tar.gz |
73 | gzip -cd LinuxTraceToolkitViewer-0.5-16092005.tar.gz | tar xvof - |
74 | cd LinuxTraceToolkitViewer-0.5-16092005 |
75 | ./configure |
76 | make |
77 | make install |
78 | |
79 | * Use LTTV |
80 | |
81 | lttv-gui (or /usr/local/bin/lttv-gui) |
82 | - Spot the "Trace Control" icon : click on it |
83 | - enter the root password |
84 | - click "start" |
85 | - click "stop" |
86 | - Yes |
87 | * You should now see a trace |
88 | |
89 | |
90 | * Getting and installing genevent |
91 | |
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92 | su - |
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93 | cd /usr/src |
94 | wget http://ltt.polymtl.ca/packages/genevent-0.1.tar.gz |
95 | gzip -cd genevent-0.1.tar.gz | tar xvof - |
96 | cd genevent-0.1 |
97 | make |
98 | make install |
99 | |
100 | |
101 | * Add new events to the kernel with genevent |
102 | |
103 | su - |
104 | cd /usr/local/share/LinuxTraceToolkitViewer/facilities |
105 | cp process.xml yourfacility.xml |
106 | * edit yourfacility.xml to fit your needs. |
107 | cd /tmp |
108 | /usr/local/bin/genevent /usr/local/share/LinuxTraceToolkitViewer/yourfacility.xml |
109 | cp ltt-facility-yourfacility.h ltt-facility-id-yourfacility.h \ |
110 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/include/linux/ltt |
111 | cp ltt-facility-loader-yourfacility.c ltt-facility-loader-yourfacility.h \ |
112 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/ltt |
113 | * edit the kernel file you want to instrument |
114 | - Add #include <linux/ltt/ltt-facility-yourfacility.h> at the beginning |
115 | of the file. |
116 | - Add a call to the tracing functions. See their names and parameters in |
117 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/include/linux/ltt/ltt-facility-yourfacility.h |
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