lttng-schedtop-mi(1)


NAME

   lttng-schedtop-mi - LTTng analyses Scheduler top machine interface

DESCRIPTION

   usage: lttng-schedtop-mi [-h] [-r REFRESH] [--gmt] [--skip-validation]

   [--begin BEGIN] [--end END]
          [--period-begin    PERIOD_BEGIN]    [--period-end    PERIOD_END]
          [--period-begin-key     PERIOD_BEGIN_KEY]      [--period-end-key
          PERIOD_END_KEY]   [--period-key-value  PERIOD_KEY_VALUE]  [--cpu
          CPU]     [--timerange      TIMERANGE]      [--progress-use-size]
          [--no-intersection]  [-V] [--debug] [--no-color] [--no-progress]
          [--min  MIN]  [--max  MAX]  [--procname  PROCNAME]  [--tid  TID]
          [--freq]  [--freq-resolution  FREQ_RESOLUTION]  [--freq-uniform]
          [--freq-series]  [--limit  LIMIT]  [--top]   [--log]   [--stats]
          [--total] [--per-tid] [--per-prio] <path/to/trace>

   The sched command.

   positional arguments:
   <path/to/trace>
          trace path

   optional arguments:
   -h, --help
          show this help message and exit

   -r REFRESH, --refresh REFRESH
          Refresh period, with optional units suffix (default units: s)

   --gmt  Manipulate timestamps based on GMT instead of local time

   --skip-validation
          Skip the trace validation

   --begin BEGIN
          start time: hh:mm:ss[.nnnnnnnnn]

   --end END
          end time: hh:mm:ss[.nnnnnnnnn]

   --period-begin PERIOD_BEGIN
          Analysis period start marker event name

   --period-end PERIOD_END
          Analysis period end marker event name (requires --period-begin)

   --period-begin-key PERIOD_BEGIN_KEY
          Optional, list of event field names used to match period markers
          (default: cpu_id)

   --period-end-key PERIOD_END_KEY
          Optional, list of event field names used to match period marker.
          If none specified, use the same --period-begin-key

   --period-key-value PERIOD_KEY_VALUE
          Optional,  define  a  fixed  key  value  to  which a period must
          correspond to be considered.

   --cpu CPU
          Filter the results only for this list of CPU IDs

   --timerange TIMERANGE
          time range: [begin,end]

   --progress-use-size
          use trace size to approximate progress

   --no-intersection
          disable stream intersection mode

   -V, --version
          show program's version number and exit

   --debug
          Enable  debug  mode  (or  set  LTTNG_ANALYSES_DEBUG  environment
          variable)

   --no-color
          Disable colored output

   --no-progress
          Don't display the progress bar

   --min MIN
          Filter out durations shorter than min usec

   --max MAX
          Filter out durations longer than max usec

   --procname PROCNAME
          Filter the results only for this list of process names

   --tid TID
          Filter the results only for this list of TIDs

   --freq Output the frequency distribution of sched switch latencies

   --freq-resolution FREQ_RESOLUTION
          Frequency distribution resolution (default 20)

   --freq-uniform
          Use a uniform resolution across distributions

   --freq-series
          Consolidate frequency distribution histogram as a single one

   --limit LIMIT
          Limit to top X (default = 10)

   --top  Output the top sched switch latencies

   --log  Output the sched switches in chronological order

   --stats
          Output sched switch statistics

   --total
          Group all results (applies to stats and freq)

   --per-tid
          Group results per-TID (applies to stats and freq) (default)

   --per-prio
          Group results per-prio (applies to stats and freq)





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.