characters display slowly when serial is enabled and debug level >=9

Oct. 1, 2017
2:19 p.m.
Hello, I just found that when I enable serial output and set debug level >=9, characters will display very slowly. It becomes worse when the machine has serial output. I can see the characters show on screen one by one. After I see the serial output. I think handler_16 is to blame, because there are many output for it. Iru -- Please do not send me Microsoft Office/Apple iWork documents. Send OpenDocument instead! http://fsf.org/campaigns/opendocument/
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Iru Cai