Questions tagged [iotop]
The iotop tag has no usage guidance.
9
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How to list the I/O usage per disk?
Using iostat, I can get the processes that use up the disk and how much - but can't specify the disk
iostat -o
Using dstat, I can see usage per disk - but not the processes that use it.
dstat -tdD ...
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0
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1
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IOTOP complains: CONFIG_TASK_DELAY_ACCT not enabled in kernel
Looking about, I see that the standard fix is to add this to the kernel boot parameters.
Using systemd-boot, my arch.conf looks like this :
title Arch Linux
linux /vmlinuz-linux
initrd /intel-...
- 1,433
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why is iotop showing "?err"
when I run iotop, the second column "PRIO" shows ?err everywhere.
What does this mean? I did not find any mention of err in the manual page.
I am using custom compiled kernel. Could it be ...
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Process shows as 100% I/O bound while producing minimal disk activity, disk util is at 100%
We are having quite strange problem. There is a program (cryptocurrency node to be precise) which has local database of all the transactions ever made. Database is huge - around 15 TB. The problem is ...
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3
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Why are processes blocked by I/O in case of heavy system load?
I have a workstation(2x Intel Xeon family CPUs and 128GiB of RAM) running several virtual machines and while the combined CPU usage is <30%, then the load average is between 20 and 25. For example, ...
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RAM bandwidth activity
I compile sources in /tmp mounted into RAM.
I'd like to know fast it is! That's show/monitor I/O activity (MB/s) for this device.
If I want to monitor HD bandwidth I would have used tools like iotop ...
- 2,528
6
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Why does a gunzip to dd pipeline slow down at the end?
my command:
gunzip -c serial2udp.image.gz |
sudo dd of=/dev/mmcblk0 conv=fsync,notrunc status=progress bs=4M
my output:
15930949632 bytes (16 GB, 15 GiB) copied, 1049 s, 15.2 MB/s
0+331128 ...
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How to see an average of I/O of disk with iotop command?
With iotop -o command I can see the write and read speed of the disk per second. But it varies a lot, from 0 to high values. I'd like to see an average of it per minute or per 10 seconds.
How can I ...
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Error with command iotop on CentOS
When using sudo iotop (latest version 0.6-2.el7) in a terminal in my newly installed CentOS 7.5, I get the following error message:
Traceback (most recent call last):
File "/sbin/iotop", line 17, ...
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