Difference between revisions of "Process"
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== Client Engagement and Project Management Process == | == Client Engagement and Project Management Process == | ||
− | {{@todo}} | + | {{@todo}} {{CompanyName}} has a detailed process for engagements that we will be publishing shortly. |
− | == | + | == System == |
− | + | On a linux system, you can use the <code>ps</code> command to find out about the processes running on the computer. | |
− | |||
− | + | A favorite incantation is the <code>ps axjf</code> command to show the process tree. Helpful to see children with their parents. | |
− | |||
− | + | In that tree output, it's easy to see the Process ID (PID) and the Parent Process ID (PPID). Using the PID, you can tell <code>ps</code> to show information only about that process: e.g. <code>ps -p 123</code> Or, if you know the name of the executable you're interested in, then you can specify it that way: e.g. <code>ps -C java</code> | |
− | |||
− | + | Sometimes a process is extremely long, and you can't see the whole picture. With the <code>w</code> option, you get a 'wide' readout. Repeat the option (<code>ww</code>) to get unlimited width in the readout. And, the <code>f</code> option shows a "full-format listing". So, for example, when you launch a java app like [[NetBeans]] (assuming you find it's <code>pid</code> to be 12657 in this example), and issue <code>ps -p12657 wwf</code>, you'll get something like this: | |
− | + | <pre> | |
+ | PID TTY STAT TIME COMMAND | ||
+ | 12657 ? Sl 3:00 /usr/lib/jvm/java-8-oracle/bin/java -Djdk.home=/usr/lib/jvm/java-8-oracle -classpath /home/greg/netbeans-8.0.2/platform/lib/boot.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-modules.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util-lookup.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_zh_CN.jar:/usr/lib/jvm/java-8-oracle/lib/dt.jar:/usr/lib/jvm/java-8-oracle/lib/tools.jar -Dnetbeans.default_userdir_root=/home/greg/.netbeans -Dnetbeans.running.environment=gnome -Dnetbeans.dirs=/home/greg/netbeans-8.0.2/nb:/home/greg/netbeans-8.0.2/ergonomics:/home/greg/netbeans-8.0.2/ide:/home/greg/netbeans-8.0.2/extide:/home/greg/netbeans-8.0.2/java:/home/greg/netbeans-8.0.2/apisupport:/home/greg/netbeans-8.0.2/webcommon:/home/greg/netbeans-8.0.2/websvccommon:/home/greg/netbeans-8.0.2/enterprise:/home/greg/netbeans-8.0.2/mobility:/home/greg/netbeans-8.0.2/profiler:/home/greg/netbeans-8.0.2/python:/home/greg/netbeans-8.0.2/php:/home/greg/netbeans-8.0.2/identity:/home/greg/netbeans-8.0.2/harness:/home/greg/netbeans-8.0.2/cnd:/home/greg/netbeans-8.0.2/dlight:/home/greg/netbeans-8.0.2/groovy:/home/greg/netbeans-8.0.2/extra:/home/greg/netbeans-8.0.2/javacard:/home/greg/netbeans-8.0.2/javafx: -Dnetbeans.home=/home/greg/netbeans-8.0.2/platform -Dnetbeans.importclass=org.netbeans.upgrade.AutoUpgrade -Dnetbeans.accept_license_class=org.netbeans.license.AcceptLicense -Xmx1024m -client -Xss2m -Xms32m -XX:PermSize=32m -Dapple.laf.useScreenMenuBar=true -Dapple.awt.graphics.UseQuartz=true -Dsun.java2d.noddraw=true -Dsun.java2d.dpiaware=true -Dsun.zip.disableMemoryMapping=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/home/greg/.netbeans/8.0.2/var/log/heapdump.hprof org.netbeans.Main --cachedir /home/greg/.cache/netbeans/8.0.2 --userdir /home/greg/.netbeans/8.0.2 --branding nb --laf Metal | ||
+ | </pre> | ||
− | + | If you use <code>-F</code> (which implies <code>f</code>), you'll get a few more columns in the output (UID, PPID, C, SZ, RSS, PSR, STIME) | |
− | |||
− | |||
− | |||
− | + | [[Category:Company]] [[Category:System Administration]] | |
− | |||
− | |||
− | [[Category:Company]] | ||
− | [[Category:System Administration]] |
Revision as of 11:25, 17 March 2016
Client Engagement and Project Management Process[edit | edit source]
todo eQuality Technology has a detailed process for engagements that we will be publishing shortly.
System[edit | edit source]
On a linux system, you can use the ps
command to find out about the processes running on the computer.
A favorite incantation is the ps axjf
command to show the process tree. Helpful to see children with their parents.
In that tree output, it's easy to see the Process ID (PID) and the Parent Process ID (PPID). Using the PID, you can tell ps
to show information only about that process: e.g. ps -p 123
Or, if you know the name of the executable you're interested in, then you can specify it that way: e.g. ps -C java
Sometimes a process is extremely long, and you can't see the whole picture. With the w
option, you get a 'wide' readout. Repeat the option (ww
) to get unlimited width in the readout. And, the f
option shows a "full-format listing". So, for example, when you launch a java app like NetBeans (assuming you find it's pid
to be 12657 in this example), and issue ps -p12657 wwf
, you'll get something like this:
PID TTY STAT TIME COMMAND 12657 ? Sl 3:00 /usr/lib/jvm/java-8-oracle/bin/java -Djdk.home=/usr/lib/jvm/java-8-oracle -classpath /home/greg/netbeans-8.0.2/platform/lib/boot.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-modules.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util-lookup.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_zh_CN.jar:/usr/lib/jvm/java-8-oracle/lib/dt.jar:/usr/lib/jvm/java-8-oracle/lib/tools.jar -Dnetbeans.default_userdir_root=/home/greg/.netbeans -Dnetbeans.running.environment=gnome -Dnetbeans.dirs=/home/greg/netbeans-8.0.2/nb:/home/greg/netbeans-8.0.2/ergonomics:/home/greg/netbeans-8.0.2/ide:/home/greg/netbeans-8.0.2/extide:/home/greg/netbeans-8.0.2/java:/home/greg/netbeans-8.0.2/apisupport:/home/greg/netbeans-8.0.2/webcommon:/home/greg/netbeans-8.0.2/websvccommon:/home/greg/netbeans-8.0.2/enterprise:/home/greg/netbeans-8.0.2/mobility:/home/greg/netbeans-8.0.2/profiler:/home/greg/netbeans-8.0.2/python:/home/greg/netbeans-8.0.2/php:/home/greg/netbeans-8.0.2/identity:/home/greg/netbeans-8.0.2/harness:/home/greg/netbeans-8.0.2/cnd:/home/greg/netbeans-8.0.2/dlight:/home/greg/netbeans-8.0.2/groovy:/home/greg/netbeans-8.0.2/extra:/home/greg/netbeans-8.0.2/javacard:/home/greg/netbeans-8.0.2/javafx: -Dnetbeans.home=/home/greg/netbeans-8.0.2/platform -Dnetbeans.importclass=org.netbeans.upgrade.AutoUpgrade -Dnetbeans.accept_license_class=org.netbeans.license.AcceptLicense -Xmx1024m -client -Xss2m -Xms32m -XX:PermSize=32m -Dapple.laf.useScreenMenuBar=true -Dapple.awt.graphics.UseQuartz=true -Dsun.java2d.noddraw=true -Dsun.java2d.dpiaware=true -Dsun.zip.disableMemoryMapping=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/home/greg/.netbeans/8.0.2/var/log/heapdump.hprof org.netbeans.Main --cachedir /home/greg/.cache/netbeans/8.0.2 --userdir /home/greg/.netbeans/8.0.2 --branding nb --laf Metal
If you use -F
(which implies f
), you'll get a few more columns in the output (UID, PPID, C, SZ, RSS, PSR, STIME)