Re: ns_tls? Was: [naviserver-devel] Re: [naviserver-commits] naviserver/nsd tclcache.c,1.2,1.3 tclcmds.c,1.34,1.35

[Zoran V. <zv...@ar...>]

On 19.04.2006, at 21:18, Stephen Deasey wrote:

>
> If any one's interested in looking into thread local caches:


So we are back to thread local caches, storing objects
directly i.e. w/o shimmering...
I believe this is simpler to do as thread-wide stuff as
there is no locking involved, or?

Zoran


>
> I was thinking that this could be pushed down into the C API.  But I
> don't know if this makes sense.  More checking of how the ADP code
> uses thread local caches for Tcl code needs to be done.
>
> We could add a flags option NS_CACHE_THREAD_LOCAL  or whatever to
> Ns_CacheCreate().  Ns_CacheLock/Unlock could depend on this flag.
>
> One thing I looked at is gathering stats in the thread local cache and
> then periodically flushing them to some common structure.  I think
> there's an example of this in the cache code I posted to the SF
> tracker.
>
> Unfortunately you can't keep it completely in the C layer, as you'd
> like to optimise Tcl by storing Tcl objects directly, rather than
> stringifying them.
>
>
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