extremely slow mouse resize pane

Kenny Ranerup

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Jul 11, 2019, 5:08:41 AM7/11/19

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When I use the mouse to resize panes it is extremely slow for some panes. The time from I grab a pane border with the mouse till I can see the new pane size can be 30s. This affects many panes but not all. There are panes in the same session that have very fast response time. It is however deterministic, i.e. it is not load related. I think it only affects vertical split panes. Resize panes through keyboard shortcuts is fast.

Not sure what is relevant information. Tmux client is 3.1, server is older, perhaps 2.9. I have compiled them myself. OS is Redhat RHEL7.2. Terminal is xterm. X protocol is tunneled through ssh.

Restarting the tmux server is not an option right now.

Any ideas what might cause this or how to debug it?

Kenny

Nicholas Marriott

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Jul 11, 2019, 5:16:02 AM7/11/19

to Kenny Ranerup, tmux-...@googlegroups.com

Do you have a huge history-limit? Try running clear-history in the problem panes.

On Thu, Jul 11, 2019 at 11:08:28AM +0200, Kenny Ranerup wrote:
> When I use the mouse to resize panes it is extremely slow for some panes.
> The time from I grab a pane border with the mouse till I can see the new
> pane size can be 30s. This affects many panes but not all. There are panes
> in the same session that have very fast response time. It is however

> deterministic, i.e. it is not load related.A A I think it only affects

> vertical split panes. Resize panes through keyboard shortcuts is fast.
> Not sure what is relevant information. Tmux client is 3.1, server is

> older, perhapsA 2.9. I haveA compiled them myself. OS is Redhat RHEL7.2.

> Terminal is xterm. X protocol is tunneled through ssh.
> Restarting the tmux server is not an option right now.
> Any ideas what might cause this or how to debug it?

> A A Kenny
>
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Kenny Ranerup

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Jul 11, 2019, 5:43:19 AM7/11/19

to Nicholas Marriott, tmux-...@googlegroups.com

Yes, indeed. I use history-limit 100000. When I cleared history in all the adjacent panes the resize becomes fast.