Re: Fwd: very slow skip frame

[Jason S]

Hi, sorry I sent what I started writing the night before, in the morning before going to work without actually reading your last reply saying that you eliminated the possibility of it being from certain objects or external file references. Process monitor, or the log might still reveal what hapenning though, and quite a few good suggestions were posted, so hope you solved the bottleneck, cheers, -J On 03/26/15 7:31, Jason S wrote: You say it also does it through the GUI, so what does the verbose (in high detail) say, you could also make all assets local (copy external files), render, and check "Sysintenals Process Monitor" what is being or being-tried to be accessed, and what transfer activity is hapenning/not hapenning You could also try :: Delete one half, render, then reload and delete the other half and render again see if there is a difference - Or incrementally delete elements by type/complexity (starting with stuff with ice trees, rigs and such) see if theres a "step-up" in frame skipping. - Also the ususal  Importing in a new scene almost goes without saying. Then call us in the morning :) (to let us know your findings) On 03/26/15 4:16, Ales Dlabac wrote: Yes you are right with difference between viewport skip and render skip what we are dealing with is the rendering skip. it's is happening on renderfarm and as well as in local GUI session. There's no simulation just non simulated ice tree, our findings so far showing us that if we delete part of the scene objects than it will gain some speed back but doesn't matter which part.  In other words there isn't particular object which is causing the slowdown only amount of objects. We are using Arnold and we tried to replace some geometry with ass standins, this helped a little. We also suspected udims textures from confusing XSI as not existing texture paths but with no luck. Regarding network traffic overload even if we removed all external resources like textures from scene it didn't help. Removing overrides from partitions had biggest performance gain so far. We keep searching. On Wed, Mar 25, 2015 at 1:37 PM, <pete...@skynet.be> wrote: just a few stabs in the dark:   is this on renderfarm / using a rendermanager?   is there any simulations (not just ice, also syflex...) ? if so, any chance that the caches aren’t working and it’s simulating – on each machine? lot’s of huge textures or other data from a shared server that isn’t up to the task? how is the pre-render time?   there is a big difference between skipping frames in the viewport and skipping frames while rendering – which is: rendering. so any render related slowness could be misinterpreted as frame skipping slowness?   when rendering with skip frames, machines have to verify if each frame exists, or at least the placeholder 10kb file – normally that’s not a big deal but with heavy load on server (many people doing 3d, compositing, with textures and caches on the same server) things that are usually fast can become a hindrance – such as finding a 10kb file while someone else is copypasting 2TB of data. a rendermanager on a separate server than the fileserver(s) can help in distributing the rendertasks without needing to verify if data exists on the server ...     From: Ales Dlabac Sent: Wednesday, March 25, 2015 11:11 AM To: softimage Subject: Fwd: very slow skip frame     Hi, we are experiencing huge slowdown when we have active frame skip in render pass. Normally in simple scene frame skip occurs immediately but for unknown reason our specific scenes takes up to10mins to skip one existing frame. If you play the scene frame changes almost immediately, there is not any slow cache reading or similar thing. Have anybody idea what it can be? Thank you. AD