Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. It may be due to queueing, especially from file systems that send a batch of writes. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state.

Performance 133

Performance Latency Speed Systems 133

Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. It may be due to queueing, especially from file systems that send a batch of writes. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state.

Performance 40

Performance Latency Speed Systems 40

Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. It may be due to queueing, especially from file systems that send a batch of writes. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state.

Performance 40

Performance Latency Speed Systems 40