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vivado-stat.adoc

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Vivado usage statistic at runtime

The vivado-stat.sh script for Xilinx Vivado-tool: that prints CPU and Memory usage of all instances of Vivado tools

Russian description available here: http://idoka.ru/my-fpga-and-asic-scripts/#__Xilinx_Vivado

Usage

Just type in cli:

./vivado-stat.sh

that run util which periodically prints the resource consumption.

You can adjust following parameters:

  • CMD - the string contain process name for watching

  • PERIOD - integer value in sec for specify period of watch

Example of running

Sample of output for PERIOD = "30s":

$ ./vivado-stat.sh
97%	   1265M
99%	   1459M
98%	   1570M
98%	   1822M
99%	   1948M
99%	   2138M
99%	   2531M
99%	   2821M
103% 	 2928M
103%	 3098M
428%	 7092M
477%	 8959M
446%	 10335M
375%	 10408M
435%	 11391M
441%	 11633M
460%	 13799M
420%	 13966M
404%	 14006M
296%	 9994M
*** vivado was finished running at 11:11 06.07.2016 ***
$

Limitation

Obsolete:

This script shows entire vivado processes of all users. For prints usage stat for current user should be modifyed script by adding | grep $USER filter on pipe

Updated:

Done! Please use the vivado-stat-user.sh script for per-user stat of Vivado usage.

Explanation of working

CPU

  • ps -C ${CMD} -o pcpu= - print all strings that contain of $CMD processes

  • sed ':a;N;$!ba;s/\n/+/g' - that converts from multiline to oneline and inserts "+" sign between values; see bellow:

    • :a - create a label 'a'

    • N - append the next line to the pattern space

    • $! - if not the last line

    • ba - branch (go to) label 'a'

    • s - substitute

    • /\n/ - regex for new line

    • /+/ - with text "+" (\+ - for escaping character)

    • g - global match (as many times as it can)

  • bc -l - pass string to simple calculator

  • cut -d. -f1 - cutting float part of result number

  • sed 's/$/%/' - added "%" sign for CPU usage on the end of string

MEM

  • ps -C ${CMD} -o size= - print all strings that contain of $CMD processes

  • sed 's/$/\/1024/g' - convert kB to MB (by 1k dividing every string)

  • sed ':a;N;$!ba;s/\n/\+/g' - see the CPU example above

  • bc -l - pass string to simple calculator

  • cut -d. -f1 - cutting float part of result number

  • sed 's/M/%/' - added "M" char for RAM usage

ToDo

  • ✓ version with separate usage by users

  • ❏ start and stop watching between vivado startup without exit

  • ✓ move from ps to top -p $PID -n1 | awk '{if (NR==8) print $10 }'

  • ✓ passing list of PIDs to CPU% usage as follow way: top -p $PID1,$PID2,..

Known issues

  • size or vsize use in ps command for RAM consumption? (currently use the size)

  • FIXED: fake CPU% used on the ps cmd. For detail read Top and ps not showing the same cpu result

  • FIXED: only one istance of Vivado tools was used for usage statistic