Opened 5 years ago

Closed 5 years ago

#9921 closed defect (fixed)

XO-1.5 poor video performance

Reported by: mikus Owned by:
Priority: normal Milestone: 1.5-software-later
Component: not assigned Version: 1.5 Software Build os64 aka 10.1.0
Keywords: Cc:
Blocked By: Blocking:
Deployments affected: Action Needed: never set
Verified: no

Description

Compare the performance of http://dev.laptop.org/~cscott/bundles/Bounce-6.xo on os64 (XO-1.5) vs. os10 (XO-1).

The movement of the ball is much jerkier on the XO-1.5. Further, the movement on the screen "pauses" entirely from time to time on the XO-1.5 (but not on the XO-1).

Also, if the cursor is anywhere in the XO-1.5 screen's playing area, it flickers horribly. The amount of time the XO-1.5 cursor is hidden approaches the amount of time the cursor is visible.


There did not seem to be any tickets addressing this particular performance situation. The closest similarities I could find were in #9361 (and maybe #9325).]

Change History (6)

comment:1 Changed 5 years ago by Quozl

  • Milestone changed from Not Triaged to 1.5-software-later

comment:2 Changed 5 years ago by mikus

To see the horrible cursor flickering on the XO-1.5, compare the behavior of the cursor within the activity area (not the header) of FoodForce2-4.xo on os108 (XO-1.5) vs. os11 (XO-1).

comment:3 Changed 5 years ago by Quozl

Mikus, how does this go on os121 now?

comment:4 Changed 5 years ago by mikus

Comparing Bounce-7 on XO-1.5 build os121 vs. on XO-1 build os13 (which had been manually upgraded with all available rpms).

The former XO-1.5 poor video performance was no longer present - if anything, each "round" of the activity (with default input) took less time on the XO-1.5 than on the XO-1.

Both systems still had the horrible cursor flickering. Presumably because the XO-1.5 has a more powerful CPU, the cursor flickering on the XO-1.5 was more horrible than on the XO-1.

comment:5 Changed 5 years ago by mikus

BTW: The position of the player's "paddle" (i.e., a movable backboard) is controlled by the cursor position. [The player needs to interpose the "paddle" so that the moving ball bounces back, instead of entering the player's end zone.] The 'tracking' of the paddle in response to cursor movement seemed slightly jerkier on the XO-1.5 than on the XO-1.

comment:6 Changed 5 years ago by Quozl

  • Resolution set to fixed
  • Status changed from new to closed

So the main issue of poor video performance is fixed, and the only remaining issue is that the Bounce activity has a flickering cursor?

I've moved that issue to
sugarlabs.org #1971

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