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