Thanks Geotavros, after watching the memory usage its about a 125mb difference when loading directly versus playing through the entire mod, definitely some sort of leak! It's not constantly growing when standing idle but it does progressively grow through various events while playing. My biggest suspicion are possible leaks during level transitions, I really expect more memory to clear.
Any advice / tips / techniques for tracking down memory leaks would be greatly appreciated. This page was helpful for anyone interested: https://developer.valvesoftware.com/wiki/Memory_Leak_Fixes I'm going to apply everything I see there to see if that helps. On Tue, Feb 17, 2015 at 2:00 PM, <[email protected]> wrote: > Send hlcoders mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlcoders > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of hlcoders digest..." > > > Today's Topics: > > 1. Help with strange performance problem (Shokunin) > 2. Re: Help with strange performance problem (geotavros) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 16 Feb 2015 23:09:45 -0600 > From: Shokunin <[email protected]> > To: [email protected] > Subject: [hlcoders] Help with strange performance problem > Message-ID: > <CAOJyTWnH729i+pj+YW7GMifVzbn32Dv9TBDwL0= > [email protected]> > Content-Type: text/plain; charset="utf-8" > > Hello everyone, > > I'm a long time lurker who is on the verge of completing a mod I've been > working on for a couple years. I've run into a very strange performance > problem that has me completely stumped and I think I need some help. > > This only occurs on the final chapter of my mod when playing completely > through in one sitting. It's only about 1-1.5 hours so I expect this to be > fairly common. (I hope!) When the final map loads performance drops > dramatically (< 10 fps) due to dynamic light rendering according to the > +show_budget breakdown, but again this only happens when playing through > the whole mod from the beginning (3 map transitions + background map in the > main menu). > > There are no env_projectedtexture lights on, no light_dynamics on, and no > normal lights or light_spots with custom appearances on. If the map is > loaded directly there are no performance problems. > > Even more strange, by pure luck I've found out by setting the cvar, > r_unloadlightmaps 1, performance is immediately recovered. I can't find any > documentation on what exactly this does and it appears to be an engine cvar > so I can't look at the code to debug. Sometimes leaving that on for 30 > seconds then setting it back to 0 keeps the performance, sometimes it needs > 45 seconds, sometimes it needs 90, sometimes it needs more. > > -Can anyone at valve or on the list help me? > -Would anyone know what exactly r_unloadlightmaps does? It seems obvious, > but I can't see any difference in any of the lightmaps or lighting. > -Can I leave r_unloadlightmaps set to 1 as a work around? > > I'm still using Source SDK 2007 since I've added hundreds of code changes > and I really want to avoid switching to 2013, plus I'm basically done at > this point minus this one issue. I've also applied all the code changes to > the env_projectedtexture entity as suggested here: > https://developer.valvesoftware.com/wiki/Env_projectedtexture/fixes > > TBH, some of the fixes listed on that page are a bit above my knowledge, > I'm afraid I've created some performance or memory leak that way. Thanks! > Any help would be greatly appreciated! > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://list.valvesoftware.com/cgi-bin/mailman/private/hlcoders/attachments/20150216/829aa4f4/attachment-0001.html > > > > ------------------------------ > > Message: 2 > Date: Tue, 17 Feb 2015 11:12:12 +0200 > From: geotavros <[email protected]> > To: Discussion of Half-Life Programming > <[email protected]> > Subject: Re: [hlcoders] Help with strange performance problem > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > Hi, > > Sounds like a memory leak. Did you check how much memory is your mod > using over time? If it use a lot of memory it can probably start to use > swap file memory which leads to significant frame rate drop. If your > hard drive indicator is blinking or shining constantly during framerate > drops this is a sign of using the swap file. You can use some profiling > apps to check how much memory your mod is using or may be there is a > concommand for that. > Anyway, if this is a memory leak you'll have to find it and remove. > > On 2/17/2015 7:09 AM, Shokunin wrote: > > Hello everyone, > > > > I'm a long time lurker who is on the verge of completing a mod I've > > been working on for a couple years. I've run into a very strange > > performance problem that has me completely stumped and I think I need > > some help. > > > > This only occurs on the final chapter of my mod when playing > > completely through in one sitting. It's only about 1-1.5 hours so I > > expect this to be fairly common. (I hope!) When the final map loads > > performance drops dramatically (< 10 fps) due to dynamic light > > rendering according to the +show_budget breakdown, but again this only > > happens when playing through the whole mod from the beginning (3 map > > transitions + background map in the main menu). > > > > There are no env_projectedtexture lights on, no light_dynamics on, and > > no normal lights or light_spots with custom appearances on. If the map > > is loaded directly there are no performance problems. > > > > Even more strange, by pure luck I've found out by setting the cvar, > > r_unloadlightmaps 1, performance is immediately recovered. I can't > > find any documentation on what exactly this does and it appears to be > > an engine cvar so I can't look at the code to debug. Sometimes leaving > > that on for 30 seconds then setting it back to 0 keeps the > > performance, sometimes it needs 45 seconds, sometimes it needs 90, > > sometimes it needs more. > > > > -Can anyone at valve or on the list help me? > > -Would anyone know what exactly r_unloadlightmaps does? It seems > > obvious, but I can't see any difference in any of the lightmaps or > > lighting. > > -Can I leave r_unloadlightmaps set to 1 as a work around? > > > > I'm still using Source SDK 2007 since I've added hundreds of code > > changes and I really want to avoid switching to 2013, plus I'm > > basically done at this point minus this one issue. I've also applied > > all the code changes to the env_projectedtexture entity as suggested > here: > > https://developer.valvesoftware.com/wiki/Env_projectedtexture/fixes > > > > TBH, some of the fixes listed on that page are a bit above my > > knowledge, I'm afraid I've created some performance or memory leak > > that way. Thanks! Any help would be greatly appreciated! > > > > > > _______________________________________________ > > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlcoders > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://list.valvesoftware.com/cgi-bin/mailman/private/hlcoders/attachments/20150217/9b7f459e/attachment-0001.html > > > > ------------------------------ > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlcoders > > > > End of hlcoders Digest, Vol 46, Issue 3 > *************************************** >
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