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Disk usage stats. - MuntyScruntfundle - Jan-22-2019
Hi folks.
I'm using all the usual code to get the main disk usage info, how big is the disk, how much available etc. but how can I get a current overhead snapshot like you get with the cpu readings?
If I ask the the cpu readings with the correct utils I get 27%, 32%, 3%, 56%. 4 readings, 1 for each cpu. This is the 'percentage' of processor overhead, or actually strain at that time.
I can't find anyway to get this snapshot for the disk. How much is the disk buffer being hammered at 'now' ?
Is this possible? I notice htop doesn't show this information.
Many thanks.
RE: Disk usage stats. - Larz60+ - Jan-22-2019
for disk access stats, you might find something here: https://pypi.org/search/?q=real+time+disk+access+stats+
RE: Disk usage stats. - MuntyScruntfundle - Jan-22-2019
Some interesting stuff, but sadly nothing that will do exactly what I need.
With a mixture of iotop atop ntop, etc I could get the numbers and calculate what I need, but that would be a real overhead problem. Running the utils needed, grepping (if even possible) the data I need, then compiling it will totally skew the processor usage.
I need this for a live monitor util which collects data and writes it out to a DB, a separate node runs a graphical interface to view live information of all 128 nodes. So anything that hammers the system is a problem. At the moment my monitoring code runs just under 2% of total processor time, I need to keep close to that.
Anyway... If anyone has anything please let me know.
Thanks.