Please report any other irregularities here.
The spell checker seems to use sync IPC messages. A lot of them. With the spell checker and e10s enabled, there's a pause of several seconds during initialization of https://public.etherpad-mozilla.org/p/berlin-lunch, right after the pad's content shows up. With either disabled, that pause goes away. See the profile at https://perfht.ml/2mPfFC1. (But note that that also is very slow, see https://github.com/devtools-html/perf.html/issues/172) Perhaps it's possible to batch spell checking requests, or make the messages async?
Blake has a patch to mitigate the problem under bug 1303749 I think. Could you please check if it helps and dupe the bug if it's the same issue?
(In reply to Gabor Krizsanits [:krizsa :gabor] from comment #1) > Blake has a patch to mitigate the problem under bug 1303749 I think. Could > you please check if it helps and dupe the bug if it's the same issue? Ah, I didn't find that. I don't have time to apply the patch, build, and re-check, I'm afraid. The issue is so obviously the same though that I'll just dupe this.
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1303749
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