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Linux list processes details12/16/2023 ![]() ![]() Model name: AMD Ryzen U with Radeon Graphicsįlags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nop ![]() $ lscpuĪddress sizes: 48 bits physical, 48 bits virtual The lscpu utility provides a comprehensive summary of your CPU's capabilities, including model information, the number of cores, speeds, flags, virtualization capabilities, and security mitigations applied. These utilities compile information from different sources to present a relevant summary that aids you in understanding the system's capabilities. This article looks at seven commands that provide details about your system's CPU, disk, RAM, devices, and firmware, in a direct and easy-to-understand way. Often, you can query one of the virtual filesystems like /proc or /sys directly, but they may provide basic information that's hard to understand at a glance. In general, Linux distributions provide many tools you can use to display system information. How well do you know Linux? Take a quiz and get a badge.Linux system administration skills assessment.A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.This can be useful if you want to see what resources the threads of the process are using or if you want to see which files or sockets the threads are interacting with.Skip to bottom of list Skip to the bottom of list The ps and top are the best choices for listing threads associated with the specified process. The number inside each parenthesis indicates the Thread ID (TID). If you count there are a total of 12 threads for the process. If you do not specify any PID, all the processes for the current user are shown in a tree hierarchy.Įxample: pstree -p output shows all the child threads for the process id 3734849 ( ie php-fpm7.4). Here, you can replace with the ID of the process you want to get the thread details.įor example, to view threads of a process with PID 671, type: ps -T -p 671 The syntax of the ps command to view threads is as follows: ps -T -p You can use the ps with -T option to list threads for a given process. The ps command lists the active processes with their PIDs and additional process information depending on the options. ![]() In Linux, you can get the threads' details, including the number of threads, of a process through several ways. In this guide, let's learn how to show threads of a process in Linux. However, the TIDs are unique for threads of a single process. The Thread Group ID for the threads of the same process is the same as the PID (Process ID). In a multi-threaded process, each thread gets a Thread Group ID and a Thread ID (TID). Thereby, threads are Lightweight processes (LWP). However, each thread has its own thread of control (i.e., registers and stack) same as the control plane of a process. Threads are lightweight as they share address space and resources of the same process. A process can simultaneously perform several tasks by concurrent execution of multiple threads. ![]()
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