IOPS: Difference between revisions
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“IOPS” stands for “Input/Output Operations Per Second.” IOPS is an important performance metric for storage devices that shows number of read/write operations that a storage device can perform per second. | “IOPS” stands for “Input/Output Operations Per Second.” IOPS is an important performance metric for storage devices that shows number of read/write operations that a storage device can perform per second. | ||
A high IOPS number means that a storage device is capable of performing a large number of read and write operations in a very short amount of time. | A high IOPS number means that a storage device is capable of performing a large number of read and write operations in a very short amount of time. This can be beneficial for applications and systems that require fast and efficient access to storage resources. | ||
If there is a sudden drop in IOPS, it could indicate a problem with the storage system or with one of the applications running on the system. | |||
== Disk IO usage Per process == | |||
Iotop is an interactive real-time I/O usage monitoring tool to check disk read and write bandwidth usage for each running process on [[Linux]].<syntaxhighlight lang="bash"> | |||
#install iotop on Ubuntu | |||
$ sudo apt update | |||
$ sudo apt install iotop | |||
#Check Total IO Usage Per Process | |||
$ sudo iotop -ao | |||
#Check Process ID instead of TID in iotop | |||
$ sudo iotop -P | |||
#Filter by Process id or username | |||
$ sudo iotop -P -p <PID> -p <PID> | |||
$ sudo iotop -P -u <USERNAME1> -u <USERNAME2> | |||
</syntaxhighlight> | |||
== IOPS over network == | |||
IOPS via network is largely a function of block size divided into bandwidth. | |||
1gbit is about 125MB/sec, divide that by 4KB(block size, for example) or whatever your block size is and you get about 32,768. the max number of IOPS over 1gbit network. | |||
== References == | == References == | ||
<references /> | <references /> | ||
Latest revision as of 09:11, 3 January 2024
“IOPS” stands for “Input/Output Operations Per Second.” IOPS is an important performance metric for storage devices that shows number of read/write operations that a storage device can perform per second.
A high IOPS number means that a storage device is capable of performing a large number of read and write operations in a very short amount of time. This can be beneficial for applications and systems that require fast and efficient access to storage resources.
If there is a sudden drop in IOPS, it could indicate a problem with the storage system or with one of the applications running on the system.
Disk IO usage Per process
Iotop is an interactive real-time I/O usage monitoring tool to check disk read and write bandwidth usage for each running process on Linux.
#install iotop on Ubuntu
$ sudo apt update
$ sudo apt install iotop
#Check Total IO Usage Per Process
$ sudo iotop -ao
#Check Process ID instead of TID in iotop
$ sudo iotop -P
#Filter by Process id or username
$ sudo iotop -P -p <PID> -p <PID>
$ sudo iotop -P -u <USERNAME1> -u <USERNAME2>
IOPS over network
IOPS via network is largely a function of block size divided into bandwidth.
1gbit is about 125MB/sec, divide that by 4KB(block size, for example) or whatever your block size is and you get about 32,768. the max number of IOPS over 1gbit network.