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From: Sebastian Gniazdowski <psprint@zdharma.org>
To: zsh-workers@zsh.org
Subject: Optimizer for zwc digest files. B. Viewer for zwc files
Date: Sat, 8 Jul 2017 12:29:36 +0200	[thread overview]
Message-ID: <etPan.5960b410.32fd67f9.4e4d@zdharma.org> (raw)

I have a super cool technique – extraction of functions from scripts. Currently, for 13 plugins that I use, I have automatically extracted that much functions: 

ls ~/.zplugin/lexicon | wc -l 
55 

So, a lexicon of functions, compiled to `lexicon.zwc` digest, loaded with `autoload -w lexicon.zwc`.

B. Has anyone a word-code viewer, that would output op-codes, strings?

A. I need to optimize such digest-zwc. The optimization can target specific functions, not necessarily all possible variants.

With OS X "Instruments" (profiling tool), I have established that in general, CPU time is spend mostly in prefork(), addvars(), stringsubst().

Can word-code be modified (in second pass after zcompile), so that prefork(), addvars(), etc. are called less often? Maybe it's about doing more at compile time, less at run time? If I gain 20 ms, then I'll aprove lexicon.zwc into Zplugin.

--  
Sebastian Gniazdowski
psprint /at/ zdharma.org


             reply	other threads:[~2017-07-08 10:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-08 10:29 Sebastian Gniazdowski [this message]
2017-07-20 15:01 ` Sebastian Gniazdowski

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