Cheat Engine

[BTGbullseye]

Couldn't find any other topics that mentioned this bug, but when CE6.1 uses more than 1GB of RAM it's window starts flickering, and won't let me do anything with it. I have to close it's process tree from the Task Manager. It also slows down my entire system to a crawl, even the mouse cursor lags...

I'm running Win7 x64.

It only seems to go that high on RAM usage when I do an "Unknown Initial Value" scan with the "All (Byte to Double)" value type, and then do any subsequent scan.


Also, (not related to the memory usage) I'm getting slowdowns on the Pointer Scanner if the scan takes more than 15 minutes to complete. (default settings)

[Dark Byte]

how much physical ram does your system have? 12gb is recomended

[BTGbullseye]

I have 6GB.

I think I may have been hasty in saying that it was the RAM usage... It appears that the ram gets as high as 1.7GB without issues, however the temp files get to be 15GB in size, and that is apparently the real slow down...

Why are the temp files getting to 15GB+ for a game that uses less than 1GB RAM at most?

[Dark Byte]

it depends on the type and how you scan

For example if you do an unknown initial value scan for the "All" type followed immediately by a unchanged value scan the temp results will become huge

in 64-bit with the "all" type, each address is stored as 16 bytes and each value is stored as at least 8 bytes (if using custom types with size it can be even bigger)
so each address takes up 24 bytes

now if you also disable fastscan or use a stepsize of 1 and did an unchanged value immediately on a 1 GB game, you would find 1073741824 addresses
1073741824 * 24 bytes = 25.769.803.776 (24GB)

a normal value type (like 4 bytes) will take up 12 bytes (8+4), so only half then (12GB)

as for the temp files causing a slowdown is only possible if your system is so old that it doesn't support DMA access or better to a harddisk

what can cause the idea that it's slowing down is because after the scan has visibly finished, it is still doing some cleanup (concatenating all the scanner threads into one big tempfile). This can take a while, but should not slow down the system as it's a low priority thread and will only cause the next scan/first scan buttons to freeze while it's not done yet


Also, check the memory (commit size) in taskmanager for the memory usage (in case you're just reading out how many physical memory has been assigned instead of how much memory it actually has)

[BTGbullseye]

Well, first off, here's my specs: http://valid.canardpc.com/show_oc.php?id=1795385
HDD is a Seagate ST9500420AS, and a Hitachi DeskStar HDS721010CLA332.

I'm using fastscan 1, no custom values, and the game only uses about 700MB. Unknown initial scan, then decreased value. (15GB base file size, total 25GB in the scan temp folder)

Yes, the RAM usage I'm getting from the Task Manager processes page.


[EDIT] The main page's CheatTable update isn't accepting my updated CheatTable either...