avgqu-sz This column really represents concurrency at the block device scheduler. The pt-diskstats output shows concurrency for reads and writes separately: rd_cnc and wr_cnc. await This column is the average response time from the beginning to the end of a request to the block device, inc...
request stats. - I/O block stats. Network - TCP connections per second. - TCP segments per second. - Number of socket in use (Total, TCP and UDP). - Number of socket in TIME_WAIT state. - Active network interface usage. - Active network interface bad packet, dropping, collision. ...
biolatencyis a BCC andbpftracetool to show disk IO statistics with latency as a histogram. The term device latency refers to the time from issuing a request to the device, to when it completes, including time spent queued in the operating system. We can usebiolatencyto check disk stats and...
request stats. - I/O block stats. Network - TCP connections per second. - TCP segments per second. - Number of socket in use (Total, TCP and UDP). - Number of socket in TIME_WAIT state. - Active network interface usage. - Active network interface bad packet, dropping, collision. ...