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qzind / qz-print

Archive for legacy qz-print versions (1.8, 1.9). See https://github.com/qzind/tray for modern versions.
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CPU usage growing up 25% on each serial port open #135

Closed jmb-oliveira closed 8 years ago

jmb-oliveira commented 8 years ago

Hello,

I'm testing qzTray with a Serial Port Printer and having problems with CPU usage growing up by 25% on each Port Open action.

I'm having this issue on many windows 7 64-bits machine and Qz Tray 1.9.5, and i'm testing on live official demo https://demo.qz.io

If I "Open Port", "Send Port Cmd", "Close Port" and "Open Port" again, the CPU usage grows 25%. The real problem's even when I close the browser tab, CPU usage still high and not reduce.

tresf commented 8 years ago

Confirmed using com0com emulator with QZ Tray 1.9.5 and Windows 10 x64.

In my tests, the "Send Port Cmd" was not needed in order to reproduce the high CPU utilization.

Note, this bug is NOT reproducible on the 2.0 branch.

Assigning @Vzor-

jmb-oliveira commented 8 years ago

NOT reproducible on the 2.0 branch and windows 7 x64 too

tresf commented 8 years ago

This fix will be available in 1.9.6.

tresf commented 8 years ago

@jmb-oliveira please try our 1.9.6 build here: https://github.com/qzind/qz-print/releases/tag/v1.9.6

jmb-oliveira commented 8 years ago

Very thanks, @tresf

I'm using the 2.0-dev and working well :) We'll wait the 2.0 release

tresf commented 8 years ago

@jmb-oliveira ok great. Offtopic of course, but we've released RC1 here: https://github.com/qzind/qz-print/releases/tag/2.0.0-RC1