Re: [naviserver-devel] Cache compiled Tcl page bytecode

[Vlad S. <vl...@cr...>]

This is from file.tcl,

     # And here's the magic part. We're using "for" here to translate the
     # text source file into bytecode, which will be associated with the
     # Tcl_Obj we just cached (as its internal representation).  "eval"
     # doesn't do this as the eval provided in Tcl uses the TCL_EVAL_DIRECT
     # flag, and hence interprets the text directly.
     #

     uplevel [for [lindex $pair 1] {0} {} {}]


Stephen Deasey wrote:
> On 7/13/06, Vlad Seryakov <vl...@cr...> wrote:
>> I meant .tcl file cacheing, which is in tcl/file.tcl when
>> enabletclpages=on then all requests to .tcl are cached in global cache.
> 
> Right, the Tcl is read from disk and cached in memory.  But only the
> Tcl *source*.  It needs to be byte code compiled before use.  This is
> what Andrew is talking about.
> 
> Our cache stringifys everything that goes into it -- you can't share
> Tcl objects between threads.  Therefore, every time you retrieve the
> Tcl page from cache (not disk), you still have to byte code compile
> it.
> 
> aolserver3.x-ad13 cached the byte code per-interp.
> 
> 
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Vlad Seryakov
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