108620 - investigate the cost of throbber

Status: RESOLVED FIXED

(SeaMonkey :: General, defect)

Description

[Cathleen]

please provide a patch to remove throbber to the bug for further analysis.

Comment 1

[Bill Law]

For this one, I just commented out the style rule for the "busy" throbber in the
modern skin's navigator.css.

With that, here's what I saw:

----- base/modern -----
00008.391: ...main1
00008.125: ...main1
00008.000: ...main1
----- noThrob/modern -----
00008.125: ...main1
00008.141: ...main1
00008.109: ...main1
avg1=8.172000 avg2=8.125000 diff=0.047000 (0.575135%)
----- base/modern -----
00008.032: ...main1
00008.172: ...main1
00008.109: ...main1
----- noThrob/modern -----
00008.203: ...main1
00008.125: ...main1
00007.984: ...main1
avg1=8.104333 avg2=8.104000 diff=0.000333 (0.004113%)
----- base/modern -----
00008.094: ...main1
00008.172: ...main1
00008.078: ...main1
----- noThrob/modern -----
00008.000: ...main1
00008.078: ...main1
00008.078: ...main1
avg1=8.114667 avg2=8.052000 diff=0.062667 (0.772264%)

Savings is slight, between ~0 and 0.77%.  Combining overlays won't help this
one.  We could consider (if worth the savings), disabling the busy throbber till
after the first page appears (or thereabouts).

This might be a case where the savings actually comes *after* the first window
appears so reducing this wouldn't buy us much, in reality.  This may need
further analysis.

Comment 2

[Bill Law]

done