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CHANGELOG.md

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0.5.8

Features:

  • Support logarithmic scale in histograms via --log-scale flag.

0.5.7

  • Add debian packages to releases

  • Add ARM build in releases

0.5.6

  • Add LICENSE file to distribution in binary package

0.5.4

  • Add AUR installation info

0.5.2

Doc improvements

0.5.0

Features:

0.4.4

Features:

  • Use "human units" by default in hist and plot sub-commands. Big numbers (those with many digits) can be hard to read. lowcharts will use some heuristics to use units when helpful (for instance, "412.7 M" as opposed to "412723763251.327"). Heuristics will take into account the range to be displayed and will keep units consistent in all of the visualization. Command line option --precision is available to deactivate this feature and request for an arbitrary number of decimals.

Bug fixes:

  • In time histograms, do not panic if all input timestamps are the same.

0.4.3

Bug fixes:

  • Do not truncate numbers in Stats section of hist and plot sub-commands if they have many digits.

0.4.2

Features:

  • Implement the sub-command common-terms. Use it to display an histogram with the number of occurrences of the most common terms of the input. Use it with --regex if the input is not filtered. Example:
# Figure out the most used syscalls when listing a directory
#
$ strace ls -l 2>&1 | lowcharts common-terms --lines 5 --regex '(.*?)\('
Each ∎ represents a count of 1
[  openat] [40] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
[    mmap] [36] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
[getxattr] [29] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
[   close] [29] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
[   fstat] [25] ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎

0.4.1

Bug fixes:

  • Allow negative values in min and max arguments

0.4.0

Features:

  • Implement the sub-command split-timehist. It mixes up the time histogram and bar chart in a single visualization. See README for an usage example.

0.3.0

Features:

  • Implement the sub-command timehist. It displays the frequency of logs that match a regex (by default any log that is read by the tool). The sub-command can autodetect the most common (in my personal and biased experience) datetime/timestamp formats: rfc 3339, rfc 2822, python %(asctime)s, golang default log format, nginx, rabbitmq, strace -t (or -tt, or -ttt), ltrace,...