Ticket #36094

Open Date: 2016-03-04 01:31

Last Update: 2016-03-17 21:47

XON/XOFF hardcoded limits too high

Priority:5 - MediumMileStone:(None)
Type:BugsSeverity:5 - Medium


XON/XOFF limits are currently set to 2048 bytes. This number is too high. The software flow control numbers are set from the ends of the buffer, and most UART buffers are much smaller than 2048. This causes poor performance in software flow control mode because the UART would send XON/XOFF constantly.

https://osdn.jp/projects/ttssh2/scm/svn/blobs/head/trunk/teraterm/teraterm/commlib.c lines 81/82.

Recommend changing XON/XOFF hardcoded limits to 128/128.

Prefer adding user-setting for XON/XOFF limits to configuration window.

Thank you.

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Ticket History - 3/3 Histories

2016-03-04 01:31 Updated by: None

  • New Ticket "XON/XOFF hardcoded limits too high" created

2016-03-04 01:33 Updated by: None

2016-03-17 21:47 Updated by: maya


Thank you for your report.

Where can we confirm that 128 is recommended bytes of these limits?

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