record Run a command and record its profile into perf.data report Read perf.data (created by perf record) and display the profile sched Tool to trace/measure scheduler properties (latencies) script Read perf.data (created by perf record) and display trace output stat Run a command and gather...
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
5. -i, –interactive: Makes a command interactive by prompting the user for confirmation before executing certain actions. It is often used as a safety measure to prevent accidental file modifications or deletions. 6. -l, –list: Lists the files, directories, or processes that are relevant to...
CPU performance is one of the easier metrics to measure. The load average is the average number of processes currently ready to run. That is, it is an estimate of the number of processes that are capable of using the CPU at any given time. When thinking about a load average, keep in ...
#!/usr/bin/stap /* * bitesize-nd.stp Measure storage (bio) I/O size distribution. * For Linux, uses SystemTap (non-debuginfo). * * USAGE: ./bitesize-nd.stp * * This script uses the kernel tracepoint block_rq_insert. The output includes * the name of the process or thread that...
NewDuring impact, the Disk experiment no longer keeps the files it produces hidden. This allows external monitoring systems like the kubelet to correctly measure changes in disk usage. SeeEphemeral storage consumption management FixFixed a bug where the Gremlin Agent would not find a target container...
re trying to figure out why. However, you shouldn’t get too distracted by performance; trying to optimize a system that’s already working correctly is often a waste of time. Instead, concentrate on understanding what the tools actually measure, and you’ll gain great insight into how the ...
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND oracle 32147 11.0 51.2 13252080 12666320 ? Rs Aug24 163:16 ora_s000_SCM2 oracle 32149 14.2 50.9 13250344 12594264 ? Ss Aug24 210:41 ora_s001_SCM2 oracle 32153 4.2 49.6 13250820 12279432 ? Ss Aug24 62:27 ora_s003_SCM2 ...
measure kernel memory properties kvm Tool to trace/measure kvm guest os list List all symbolic event types lock Analyze lock events mem Profile memory accesses record Run a command and record its profile into perf.data report Read perf.data (created by perf record) and display the profile ...
Control Message Protocol) echo request packets to the targeted device, and if the device is reachable and responsive, it will reply with an ICMP echo reply packet. The ping command can be used to troubleshoot network connectivity issues, measure latency, and check the availability of a remote ...