Re: [RFC] Native TLS for globals in ZTS

Hi, I updated the RFC. I added benchmark tests on x86_64: Position independent code is the default there and is as fast as non-PIC on IA-32. The initial patch using dynamic TLS gives the same results as on IA-32 with static TLS. I also tested the patch (with a few changes) on Windows Server 2008 with IIS (older Windows cannot use TLS in LoadLibrary()-loaded DLLs). This works as expected, but there are still some restrictions. Regards, Arnaud On Sunday 24 August 2008 18:37:09 Arnaud Le Blanc wrote: > Hi, > > I have written a RFC about my patch at > http://wiki.php.net/rfc/tls > > The goal of this patch is to reduce the performance overhead of ZTS builds. > > Since the initial patch I made more research on various implementations of > TLS: Linux, FreeBSD, Solaris, Windows. Based on what I found I wrote a new > patch to avoid the problems of the initial one and the results on bench.php > are as follows: > > > non-ZTS > 3.7s > > > ZTS unpatched > 5.2s > > > ZTS-patched, native TLS disabled > 5.0s > > > ZTS-patched, native TLS enabled > 4.2s > > > Regards, > > Arnaud >