Tdesktop: huge memory leak in work with cached images and medium leak with loading images

Created on 22 Nov 2015 · 34Comments · Source: telegramdesktop/tdesktop

easy to reproduce

medium leak
1) clear cache
2) close telegram
3) run again
4) open group chat with 1000-1500 posted images
5) open task manager to see memory consumption
6) scroll up to earlier messages

huge leak
1) just close telegram after previous experiment (if it don't crashed lol) without clear cache
2) open group chat with 1000-1500 posted images
3) open task manager to see memory consumption
4) scroll up to earlier messages

i recorded video https://files.fm/u/ynvqtnms

bug help wanted

Source

f242

👍6

Most helpful comment

problem is still present

f242 on 1 Jun 2018

👍5

All 34 comments

I can confirm this behaviour on telegram 0.9.19 on Linux.

slaveriq on 22 Jan 2016

I can confirm too. I use Telegram 0.9.42 for Linux 64 bit downloaded from official site. But I also got confirmation from few people who uses it on Windows.

Open chat with stickers, images and other attached media files. Scroll to beginning of the chat and then to the end. Repeat several times and you could notice memory leak.

stpnk on 27 Apr 2016

I left Telegram-desktop opened on my always-on archlinux machine for about 10 days without even touching that machine.
When i was back ,telegram was using about 2.5GB of ram and i repeat, nobody even used it.
This is still valid on 0.9.56

kokoko3k on 18 Jul 2016

I used valgrind few months ago, but the amount of errors related to QT was a pain to debug properly.

Aokromes on 8 Nov 2016

Telegram Desktop slowly increases it's memory usage and never seems to clear it, until restarted manually or eaten by OOM Killer.

infoman on 4 May 2017

Hey there!

We're automatically closing this issue since there was no activity in this issue since 392 days ago. We therefore assume that the user has lost interest or resolved the problem on their own. Closed issues that remain inactive for a long period may get automatically locked.

Don't worry though; if this is in error, let us know with a comment and we'll be happy to reopen the issue.

Thanks!

_{(Please note that this is an automated comment.)}

tdesktop-closer on 1 Jun 2018

👎3

problem is still present

f242 on 1 Jun 2018

👍5

I confirm this bug exists on 1.4 and it leads to crash on 32 bits versions.

Aokromes on 2 Oct 2018

👍1

When are you fix this?

Darkcacok on 14 Dec 2018

@Darkcacok It should be better in the latest versions.

john-preston on 14 Dec 2018

Already 1.5 version and this bug is still not fixed on Linux. I do not know how it works in Windows, but Windows does not have the same problem

Darkcacok on 14 Dec 2018

@Darkcacok Linux and Windows versions work the same way with images and caching, so there should not be any major difference. Maybe you test them differently?

john-preston on 14 Dec 2018

I open the task manager on Windows and scroll through the chat. When the telegram begins to use more than 100 megabytes, the memory is reset to 50-60 megabytes. On Linux, memory does not even decrease, but only increases. What's the problem and how it is work?

Darkcacok on 14 Dec 2018

@Darkcacok Do you try 1.5.2 on Windows? It should allow up to 128 MB of image data in memory before it starts clearing, both on Windows and on Linux.

john-preston on 14 Dec 2018

Ok. I tried version 1.5.2 on windows. Now the memory is kept at around 200 megabytes, but it is still slowly increasing. I managed to reach 230-240 megabytes. On Linux, memory cleanup does not work at all.

Darkcacok on 14 Dec 2018

So why on Linux it does not work?

Darkcacok on 14 Dec 2018

I'm so sorry. Memory is really cleared on Linux. But not as aggressive as on Windows. I was not able to increase my memory usage by more than 1 gigabyte. Good work. But you can do better.

Darkcacok on 14 Dec 2018

1.5.15 on Linux. Tdesktop use to eat 50-60 mb on startup but after ~24 hours memory usage increases up to 300 mb

danielleontiev on 14 Mar 2019

Man, this issue is opened for more than 3 years now.
I doubt it will be solved, so i just made a script that restarts it every hour.

#!/bin/bash
while true ; do
kill `pidof telegram-desktop` && telegram-desktop -startintray &
sleep 3600
done

...and made it a systemd user service

kokoko3k on 14 Mar 2019

😕2 😄2

@kokoko3k oh, it's really straightforward solution thank you.

danielleontiev on 14 Mar 2019

But it's sad that the memory leaking is not in the priority for developers. Where are the benefits of native app? It uses as much RAM as Electron does

danielleontiev on 14 Mar 2019

😕2

@danielleontiev that's false @john-preston already fixed few big memory leaks, now it's really hard to use >1GB of ram

Aokromes on 14 Mar 2019

@Aokromes I've seen this just now. Yes, maybe 1Gb is unreachable but 400 Mb is still too much

danielleontiev on 14 Mar 2019

I've opened tdesktop on linux for a month and it consumes 15GB memory. It still has some memory leak issues under the hood.