From the course: Linux Performance Tuning

Unlock the full course today

Join today to access over 22,600 courses taught by industry experts or purchase this course individually.

top and htop for memory usage

top and htop for memory usage - Linux Tutorial

From the course: Linux Performance Tuning

Start my 1-month free trial

top and htop for memory usage

- [Instructor] Let's look at our memleak.c file, and we see it loops 30 times, mallocing 100 meg each time, with a sleep in between, so it's going to run something over 30 seconds. And we're going to run that, and while it's running, we're going to look at top and htop. And to make sure we have enough time, I'm just going to run it in a loop. So while true do memleak done. All right, so that's running in this window. I'll switch over to another window and I'll run top, and top is now sorting by percent CPU and memleak doesn't seem to be using a lot of CPU there. So we're going to switch to percent memory so we do a little f and we get the list, down arrow brings us brings us to percent mem, and if you read the little list on top of directions we see we need to do a right arrow to select, then a left arrow to commit, than as S to say we want to sort on that, and then an escape. Now we're sorting on percent mem and memleak's way up there at the top, using over 30%. And then memleak went…

Contents