SamWale wrote: »

I'm using an Early 2009 Mac Pro with dual CPU (2 x 2.26GHz Quad-Core Intel Xeon).

The game runs fine most of the time and Activity Monitor shows that the cores don't seem to be struggling, but I'm still having serious FPS drops (10-30 fps) and stutters in towns. In dungeons and various other areas I'm getting 80-100 fps, so I can't think of anything else that might causing the problem.

I haven't tried the dual CPU workaround yet as I don't have XCode installed. Is that likely to help with the FPS issues?

Hard to say. Only way is probably to try it .

FPS drops and stutters in towns is mostly down to graphics card performance and settings i.e.e settings suited to installed GPU to achieve balance of smooth play/ FPS and decent visuals. So depends rather on what graphics card you have and tweaking settings.

It is also impacted by server side lag and performance which I find is causing stuttering and slow draw in rather more after 1.2.3 which may be related to known FPS drop issues they are looking to resolve. Or just stress at peak times and/ or network.

You would get a better idea of this by testing play on the PTS public server which has a much lower population and gives the player a better idea of base performance to compare to live.

The question posed in the OP is more directed at those who had to use the fix to actually play and whether it is still required.

Windshadow_ESO wrote: »

On my mid 2006 1.1 Mac Pro dual 3 ghz dual core 4780 video dual 1920x1200 apple cinema displays 19 gig ram 1 Tera SSD system 7.5.x it has worked just fine ( well as fine as it runs on a mac book pro running 9.x starting in January SSD on the old pro...
Even with graphics set to mostly low and grass at 35 the laptop just pauses for a moment or three every once in a short while the old mac pro never stutters this way in pve areas naturally I avoid the pvp game on both computers.

I also just play on the PTS these days I have not been back to the NA server for weeks I just got tired of dealing with all the bots and spam.

Thanks for the feedback. Any more feedback is welcome on this particular issue.

SamWale wrote: »

Does anyone know if dual CPU support will be introduced in a future update?

It would considerably boost the game's performance for many of us!

No idea I'm afraid. It seems to work on dual CPU Macs generally even when not officially supported. However Im not sure they can enable support to use both CPU for the game which I would guess would require specific coding. Same for PC also.

Well I could be wrong but I'm assuming it would solve the seriously unstable FPS and stutter problem I've been having pretty much since I started playing.

I'm using a GTX 660 with 20GB RAM and a relatively stable internet connection, so from what I can see it must be my CPUs that are the bottleneck - 2 x 2.26GHz Quad-Core Intel Xeon.

I use this system primarily for high-end audio production with Logic Pro X and a number of extremely demanding plug-ins and sample libraries running simultaneously. It handles this almost effortlessly, distributing the workload evenly over all 16 virtual cores.

With this game running I can only see half of those virtual cores active, and usually one working much harder than the rest, but none of them maxed out. If this game could efficiently utilise all of the CPU cores in my system I'm sure it would perform considerably better!

SamWale wrote: »

Well I could be wrong but I'm assuming it would solve the seriously unstable FPS and stutter problem I've been having pretty much since I started playing.

I'm using a GTX 660 with 20GB RAM and a relatively stable internet connection, so from what I can see it must be my CPUs that are the bottleneck - 2 x 2.26GHz Quad-Core Intel Xeon.

I use this system primarily for high-end audio production with Logic Pro X and a number of extremely demanding plug-ins and sample libraries running simultaneously. It handles this almost effortlessly, distributing the workload evenly over all 16 virtual cores.

With this game running I can only see half of those virtual cores active, and usually one working much harder than the rest, but none of them maxed out. If this game could efficiently utilise all of the CPU cores in my system I'm sure it would perform considerably better!

If it is running eight cores then it is supporting all cores but the Hyper-threading is not functioning (for the 16 cores)

That it is running all eight cores seems to confirm it is supported correctly but for some reason the Hyper-threading is not. On the PC players were disabling the multi-threading in UserSettings.txt to improve stability so this is not necessarily a bad thing. I have an i5 processor so can only comment myself on four core which works fine and is often considered fine for gaming as few games support more.

What you describe on core usage being uneven and a lot of activity on one core is actually more in common with PC posts. In that one or two cores seem to get used with others hardly active and why in fact the CPU is bottlenecked in ESO from tests (I have not seen any more recently so perhaps that has changed)

There are many threads on this like this example (just search 'CPU cores' terms)

From my tests of both Mac and PC client via Bootcamp, the Mac client has always given even load over all cores and I also saw one core being worked hard and confirming observations posted in the forums on the PC client. So it seemed that Mac OS X was handling the threads much better across available cores. It may be that with the dual CPU Mac Pro that it is in fact working more like the PC client from your description which 'may' be a reason for the stuttering and FPS drop.

I posted a while back on this difference with some images which show it more clearly.

There was also some confirmation on this posted previously in this thread worth checking with a Mac Pro and testing the Hyper-threading. Note that it is six core CPUs not four core.

As to why this may be happening on the Mac Pro I can't say as I don't have one to test myself.

SamWale wrote: »

Thanks for this info, very much appreciated!

I seem to have solved the stutter problem by disabling hyperthreading in the UserSettings.txt file, and can see that the 8 CPU cores are all much more active now.

My FPS is still below 20 in busy areas, even when switching from Ultra to Medium graphics, but at least it's an improvement for now!

Glad it helped. it does seem something related to multi-threading. Having the more even core thread load should help with any stuttering.

FPS wise it's more graphics card I suspect and possibly the drivers. Make sure Shadow Quality is Low or Off and View Distance reduced can help too.