App/script to simulate memory write

[ChrisD.]

Hi, I'm looking for an app or script which writes to memory pages, and if possible one which can define how much I'm writing. For example, script starts and it writes X GB/s to memory. Does such a thing exist? Preferably Ubuntu but can use most distros. Thanks!

 

[Throrik]

MASIM might do something similar to what you want.

 

[ChrisD.]

Cheers, I stumbled on Stress and I remember it from years ago so might give that a try first.

 

[ChrisD.]

Stress seems okay so far, the only thing I'd like is not to consume a whole CPU which it looks to do, but it's great for generating memory writes.

stress --vm 1 --vm-bytes 1024M --timeout 60

Will stress 1024 MB of RAM on a single thread over a minute.

 

[uvarvu]

I copied your post to CoPilot and it gave me this

import time

def write_to_memory(size_in_gb, duration_in_sec):
    data = bytearray(1024 * 1024 * 1024)  # 1 GB
    start_time = time.time()

    while time.time() - start_time < duration_in_sec:
        for _ in range(size_in_gb):
            _ = data  # Write data to memory

write_to_memory(1, 10)  # Write 1 GB/s to memory for 10 seconds

 

[ChrisD.]

haha I forget I can use AI for these sorts questions!

 

[pete910]

I copied your post to CoPilot and it gave me this

import time

def write_to_memory(size_in_gb, duration_in_sec):
    data = bytearray(1024 * 1024 * 1024)  # 1 GB
    start_time = time.time()

    while time.time() - start_time < duration_in_sec:
        for _ in range(size_in_gb):
            _ = data  # Write data to memory

write_to_memory(1, 10)  # Write 1 GB/s to memory for 10 seconds

So you've taken a simple one line command and made it complicated!