Memory Leak? (v2.31)

hayaku · Today, 03:46 AM

Hello.

I must admit, I wouldn't have expected that my RTX4090 would ram out running, Sigil, but it seems to be the case with v2.31

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Is this memory leak documented, with a fix on the way?

Sometimes, I've come back home to find Sigil consuming >20GB of VRAM. Quite concerning!

Thanks for this app, keep up the good work everybody!

DiapDealer · Today, 06:49 AM

It's always possible. A successful Windows QtWebEngine compilation nearly always has warnings of potential memory leaks. But the Qt used with Sigil 2.3.1 is the same one used with Sigil 2.3.0, so I would expect identical results. Any info on just how long Sigil had to stay running to get to the numbers you screen capped?

For the record... Sigil almost never needs very much GPU for rendering epubs. That's why we added the ability to turn off WebEngine's hardware acceleration in Sigil's preferences: to handle the edge cases where WebEngine doesn't always play nice with certain video cards. Have you tried disabling that?

DiapDealer · Today, 07:49 AM

I'm not one to leave programs open and running for days at a time, but I'll leave Sigil running to see if I can duplicate your results. So far, my dedicated gpu memory is fluctuating between 0 and around 7,000K. But it's early. I'll keep checking.

KevinH · Today, 09:32 AM

There is a bug posted to Qt about memory consumption with some AMD processors. I do not have a link handy but there are known issues.

I think I found the Qt bug report:

https://bugreports.qt.io/browse/QTBUG-125747

Using the --disable-gpu flag seemed to fix things. This did not happen with Intel.

DiapDealer · Today, 10:02 AM

I'm testing on an AMD processor at home right now. But I'm away from it, so I'll have to report back later.

On the Intel laptop (integrated GPU) that I'm also testing on, all memory usage increases with use, but seems to settle back down to numbers that match what it launched with after some idle time. So no net increase that I've been able to find so far.

Today, 03:46 AM	#1
hayaku Junior Member Posts: 6 Karma: 10 Join Date: Nov 2023 Device: Kindle	Memory Leak? (v2.31) Hello. I must admit, I wouldn't have expected that my RTX4090 would ram out running, Sigil, but it seems to be the case with v2.31 Is this memory leak documented, with a fix on the way? Sometimes, I've come back home to find Sigil consuming >20GB of VRAM. Quite concerning! Thanks for this app, keep up the good work everybody! Last edited by DiapDealer; Today at 06:12 AM. Reason: Thumbnail oversized theme-breaking image

Today, 06:49 AM	#2
DiapDealer Grand Sorcerer Posts: 27,917 Karma: 198500000 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	It's always possible. A successful Windows QtWebEngine compilation nearly always has warnings of potential memory leaks. But the Qt used with Sigil 2.3.1 is the same one used with Sigil 2.3.0, so I would expect identical results. Any info on just how long Sigil had to stay running to get to the numbers you screen capped? For the record... Sigil almost never needs very much GPU for rendering epubs. That's why we added the ability to turn off WebEngine's hardware acceleration in Sigil's preferences: to handle the edge cases where WebEngine doesn't always play nice with certain video cards. Have you tried disabling that? Last edited by DiapDealer; Today at 09:27 AM.

Today, 09:32 AM	#4
KevinH Sigil Developer Posts: 8,101 Karma: 5450184 Join Date: Nov 2009 Device: many	There is a bug posted to Qt about memory consumption with some AMD processors. I do not have a link handy but there are known issues. I think I found the Qt bug report: https://bugreports.qt.io/browse/QTBUG-125747 Using the --disable-gpu flag seemed to fix things. This did not happen with Intel. Last edited by KevinH; Today at 09:37 AM.

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Today, 07:49 AM	#3
DiapDealer Grand Sorcerer Posts: 27,917 Karma: 198500000 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I'm not one to leave programs open and running for days at a time, but I'll leave Sigil running to see if I can duplicate your results. So far, my dedicated gpu memory is fluctuating between 0 and around 7,000K. But it's early. I'll keep checking.

Today, 10:02 AM	#5
DiapDealer Grand Sorcerer Posts: 27,917 Karma: 198500000 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I'm testing on an AMD processor at home right now. But I'm away from it, so I'll have to report back later. On the Intel laptop (integrated GPU) that I'm also testing on, all memory usage increases with use, but seems to settle back down to numbers that match what it launched with after some idle time. So no net increase that I've been able to find so far.

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