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From Vladimir Sitnikov <>
Subject Re: [Bug 60687] Make GUI more responsive when LoggerPanel gets a lot of events
Date Sat, 04 Feb 2017 14:52:42 GMT
Felix> The timer lives in the awt thread, so we need no invokeLater. Or do
I miss
Felix> something?

I thought it was java.util.Timer.
I did not notice that was javax.swing.Timer. swing timer is fine.

Philippe>I agree. The only reason I would see for calling invokeLater would
maybe to
Philippe>avoid freezing UI if the call takes more than some limit

invokeLater is not required provided the timer is swing timer.

I wonder if we can rework log panel into "append" calls instead of "set
text from scratch".

Philippe>For me there is only 1 Timer thread no ?

I'm not sure if we can reuse that swing timer to aggregate events form
listeners (e.g. statistics listeners, etc).

Felix>The component is set to an empty text

Oh, I did not notice that. On the other hand, it looks awkward.
I find "buffer.clear(); modified=true;" easier to reason about since that
results in a single place where the textarea gets updated.

PS. Are you sure "events.clear()" is thread-safe?

PPS. Can we move format.format(logEvent) out of syncrhonized(events) block?


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