Bug 31175

Summary: Incorrect scale lines in xload window
Product: xorg Reporter: Cyril Brulebois <kibi>
Component: Lib/XawAssignee: Jeremy Huddleston Sequoia <jeremyhu>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium Keywords: patch
Version: git   
Hardware: Other   
OS: All   
Whiteboard: 2011BRB_Reviewed
i915 platform: i915 features:
Attachments:
Description Flags
Fix by Nikita V. Youshchenko none

Description Cyril Brulebois 2010-10-27 16:02:34 UTC 
Created attachment 39823 [details] [review]
Fix by Nikita V. Youshchenko

From: <http://bugs.debian.org/167448>
Reported-by: "Nikita V. Youshchenko" <yoush@cs.msu.su>

Excerpt:

Recently I tried to run xload on a high loaded server (load was more
than 10), and discovered that if window size is rather small, scale
lines are drawn incorrectly (upper than needed).

This is caused by a bug in Xaw/StripChart.c.
It draws lines with fixed integer steps. Than means that if window
height is 39 pixels, and 10 lines should be drawn to split view into 11
equal parts, lines will be drawn at 3, 6, 9, ,.., 30. So the bottom part
height will be 9 pixels while other parts height will be 2 pixels.

We've been shipping a patch for a while now; submitting upstream for reviewing/merging…
Comment 1 Jesse Adkins 2010-10-31 12:45:18 UTC 
Can you send this to xorg-devel@lists.freedesktop.org for review if you haven't already?
Comment 2 Jeremy Huddleston Sequoia 2011-10-05 09:04:30 UTC 
low hanging fruit.  I'll review this one.
Comment 3 Adam Jackson 2018-06-12 19:08:08 UTC 
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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