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Release 1.14.1: stop tmux lag (status forks, history cap) - #64
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oh-my-tmux expands #{username}/#{root}/#{hostname} into #() shell jobs that
fork the tmux server ~3x/s. With a 1.3 GB server each fork copies its page
tables; measured 60% server CPU -> 7% using native #{user}@#{host_short}.
At 10M lines the server reached 1.3 GB, and every fork copies its page tables. Release 1.14.1.
YASoftwareDev
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What: status-right uses native #{user}@#{host_short} instead of three forked shell jobs; history-limit 10M -> 20000. Release 1.14.1.
Why: on dev-01 the tmux server reached 1.3 GB (352k scrollback lines) and forked ~3x/s for status jobs; perf showed copy_present_pte/zap_pte_range on top, server at 60% CPU, every pane lagging.
Verified on dev-01: server CPU 60% -> 7%, runqueue wait 107 -> 16 ms/s (schedstat, 10 s windows); forks from the server 59 -> 6 per 20 s (execsnoop). After clear-history + malloc_trim, RSS 1376 -> 77 MiB.