Huge delay added to switching tabs

[Chilinot]

I'm using lots of tabs with many windows when I'm coding and when I added this plugin to my Vim the performance really tanked. From taking a couple milliseconds between tab switches it now takes around 0.5+ everytime I switch tab in Vim.

My guess is that this line is the cause:
autocmd BufEnter * call s:handleActivity(s:false) found here: https://github.com/wakatime/vim-wakatime/blob/master/plugin/wakatime.vim#L312

Does it really have to call this method every single time on every single buffer in the tab I switch to?
Could this be refactored to use the new async API that has been implemented in the latest Vim or NeoVim?

[alanhamlett]

Just to make sure, debug mode is turned off in your ~/.wakatime.cfg file?

When debug = true the plugin does some networking in the foreground process instead of the background when switching to a new buffer.

Could this be refactored to use the new async API that has been implemented in the latest Vim or NeoVim?

Yes, that would improve performance.

[Chilinot]

Yea it is disabled.

[alanhamlett]

Ok, I'll update the plugin to use the new async api if available.

[alanhamlett]

Instead of using async, I've buffered the heartbeats in memory. Can you update the plugin and see if performance improves when switching tabs? If it's improved enough, we can postpone using the async job_start for now.

[Chilinot]

Vim seems a lot snappier now compared to before. Huge thanks :)

[alanhamlett]

Awesome! Glad it's fixed!

[Chilinot]

It would seem that Vim no longer reports any time to wakatime. I have zero time registered from the day this issue was solved up to now.

[alanhamlett]

How about with the latest version?

[Chilinot]

Yes, latest version solves the issue. I was looking through the log and it is filled with these errors (that are no longer happening). In case you would find it useful anyway:

"2017/04/25 16:04:34 +0000", "version": "8.0.0", "plugin": "vim/704 vim-wakatime/4.0.15", "time": 25696.623507, "level": "ERROR", "message": "{'response_code': 400, 'response_content': u'{\\n  \"errors\": {\\n    \"time\": [\\n  
   \"Number must be between 1388534400 and 99999999999.\"\\n    ]\\n  }\\n}\\n'}"}

[alanhamlett]

That was the same issue as #48. I can write a script to parse your ~/.wakatime.log file and replay that coding activity if that's useful?

[Chilinot]

Oh my bad. No that wont be needed but thanks anyway :)

[alanhamlett]

An update, now vim-wakatime uses Vim's async job_start for improved performance with 99ffbf3.

It also buffers heartbeats to prevent spawning too many python processes.