Possible Memory Leak in FAH client

[semicolonTransistor]

The FAHClient.exe process alone is taking nearly 10GB of memory.



Restarting FAH did not resolve the issue; the FAH process allocated nearly 10GB of memory immediately after startup.

OS: Windows 11 Pro 24H2
FAH: Version 8.4.9

[calxalot]

What you are describing is not a memory leak. It is excessive memory usage.

Possibly related:
https://github.com/FoldingAtHome/fah-cl ... issues/291

[muziqaz]

We can reproduce this all the time after we restart the pc with paused WU. FAHclient does something at that point to take all this memory. Dev is aware of it, not sure when the fix will be implemented.
Memory usage usually normalises after a while, or after you finish the WUs

[semicolonTransistor]

I see. Just out of curiosity, what would be a reasonable, stable memory usage amount for the FAHClient? It appears that it still consumes 1-3GB of memory even after running for a while.

[calxalot]

Recently restarted client on macOS 15.6 intel
According to Activity Monitor
real mem 36 MB
private mem 14 MB
virtual mem 34 GB

[muziqaz]

In windows it is 10s of MBs

[arisu]

I notice that it consumes 1-3 GB after a while as well on Linux. This is resident memory, not virtual memory which is expected to be large. It might be doing something weird like not removing downloaded or uploaded wudata/wuresults files from memory after downloading/uploading them. I've been planning to look into this.

[dplinker]

I am also having issues on Kubuntu 24.04. FAH client will grow constantly.

Code: Select all

systemctl restart fah-client

will set it back to a reasonable size, but if I don't do that regularly it will eventually cause my system to seize.

[EdgeArcher]

Same issue on Windows 11 23H2

[muziqaz]

Fix is in the works