At 03:32 PM 1/24/2009, Chris Green wrote: >Those amd-optimized binaries weren't 64-bit binaries AFAIK (this is >from before I started working on the linux ds), but rather were just >binaries produced with gcc tuning settings set to favor the amd64 >chips. With the orange box (and subsequently with l4d), we changed a >lot of our compiler settings and versions and a lot of things about >the way we optimize code had changed, and it was felt that after >these changes, there weren't significant improvements from having >separate binaries for intel and amd.
Honestly, from an OS point of view 64bit binaries give you a couple of registers to use on the stack.. i know you use -fPIC for your shared libaries, so you lose a register to use on the stack.. older gcc's suffered, while newer ones are better at optimizing. What GCC are you using for source? >In our more recent dedicated server work, we've concentrated on >optimizations that enhance performance of all platforms, and you can >see it in the >left4dead linux ds. This release had a lot of the linux-specific >code rewritten, switch compiler versions, turned on higher optimization levels, >and had a lot of linux-specific server features added, and is >definitely the highest performing linux ds we've released for any of our games. The first thing I can think of that you could do is rewrite the time function to cache time and only update it every so often.. I have a proof of concept here. It reduces syscall time by 40% for HZ=1000 for gettimeofday/clock_gettime. I'm currently using timer_create() instead of usleep() for an experiment. >-----Original Message----- >From: hlds_linux-boun...@list.valvesoftware.com >[mailto:hlds_linux-boun...@list.valvesoftware.com] On Behalf Of ics >Sent: Saturday, January 24, 2009 11:47 AM >To: Half-Life dedicated Linux server mailing list >Subject: Re: [hlds_linux] AMD64 binaries > >Maybe 64bit binary was discontinued because it was harder to keep up >many branches of the engine. Srcds_i486 runs fine on most machines. >Thats the main purpose anyway, not "best performance" which some people >here seem to be looking for. Their agenda may be commercial or out of >interest but i dont think you will get 64bit binaries unless whole Steam >goes 64bit among games. It must be discontinued for a reason. > >-ics > >Walton Hoops kirjoitti: > > I admit I haven't dug into the scripts to see what is actually being run, > > but whenever I start my server (using Ubuntu x64), I see: > > > > Auto detecting CPU > > Using AMD-Opteron (64 bit) Optimised binary. > > > > This sounds to me like there already is a 64-bit binary. Am I mistaken? > > > > Walton > > > > -------------------------------------------------- > > From: "Kveri" <kv...@kveri.com> > > Sent: Saturday, January 24, 2009 10:26 AM > > To: "Half-Life dedicated Linux server mailing list" > > <hlds_linux@list.valvesoftware.com> > > Subject: Re: [hlds_linux] AMD64 binaries > > > > > >> I think almost everyone here uses newer processors, so everyone should > >> be interested :). > >> > >> Why not to use all that power the x64 processors offer? > >> > >> Kveri > >> > >> Joseph Laws wrote: > >> > >>> Yes, I'm very interested in the status of the AMD64 binaries as well. > >>> > >>> Gary Stanley wrote: > >>> > >>> > >>>> What ever happened to AMD64, valve? > >>>> > >>>> The AMD64 binaries allowed hosters to use additional gpr's on the > >>>> stack.. also there are other benefits, native vsyscalls/vdso, no more > >>>> memory segmentation, high memory support (no PAE) > >>>> > >>>> Can you re-release them? I found the older binaries performed > >>>> excellently under load. > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> _______________________________________________ > >>>> To unsubscribe, edit your list preferences, or view the list archives, > >>>> please visit: > >>>> http://list.valvesoftware.com/mailman/listinfo/hlds_linux > >>>> > >>>> > >>>> > >>>> > >>> _______________________________________________ > >>> To unsubscribe, edit your list preferences, or view the list archives, > >>> please visit: > >>> http://list.valvesoftware.com/mailman/listinfo/hlds_linux > >>> > >>> > >>> > >> _______________________________________________ > >> To unsubscribe, edit your list preferences, or view the list archives, > >> please visit: > >> http://list.valvesoftware.com/mailman/listinfo/hlds_linux > >> > >> > > > > _______________________________________________ > > To unsubscribe, edit your list preferences, or view the list > archives, please visit: > > http://list.valvesoftware.com/mailman/listinfo/hlds_linux > > > > >_______________________________________________ >To unsubscribe, edit your list preferences, or view the list >archives, please visit: >http://list.valvesoftware.com/mailman/listinfo/hlds_linux > >_______________________________________________ >To unsubscribe, edit your list preferences, or view the list >archives, please visit: >http://list.valvesoftware.com/mailman/listinfo/hlds_linux _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
