Web2 days ago · # Introduce Add PR_NUMA_BALANCING in prctl. A large number of page faults will cause performance loss when numa balancing is performing. Thus those processes which care about worst-case performance need numa balancing disabled. Web13 Jan 2024 · Thanks. add prctl interface for task isolation Add a new extensible interface for task isolation, and allow userspace to quiesce the CPU. This means putting the system into a quiet state by completing all workqueue items, idle all subsystems that need it and put the cpu into NOHZ mode.
extensible prctl task isolation interface and vmstat sync - LWN.net
Websecurity/commoncap.c::cap_task_prctl(). For the aforementioned configs cap_task_prctl() is not called (moreover, security/commoncap.c is not compiled). SELinux's implementation of .task_prctl callback resorts to secondary_ops->task_prctl() which is dummy_task_prctl() (in the WebInterface. A thread can setup this mechanism on supported kernels by executing the following prctl: prctl (PR_SET_SYSCALL_USER_DISPATCH, , , , [selector]) is either PR_SYS_DISPATCH_ON or PR_SYS_DISPATCH_OFF, to enable and disable the mechanism globally for that thread. When PR_SYS_DISPATCH_OFF is used, … risk based approach to internal auditing
Using the prctl Command (System Administration Guide: Oracle Solaris …
Web12 Nov 2024 · The general format is: prctl (PR_ISOL_ACTIVATE_SET, pmask, arg3, arg4, arg5); The 'pmask' argument specifies the location of an 8 byte mask containing which features should be activated. Features whose bits are cleared will be deactivated. Webbprm_committing_creds. Prepare to install the new security attributes of a process being transformed by an execve operation, based on the old credentials pointed to by current … Webexample$ ps -o taskid -p $$ TASKID 8 example$ prctl -i task 8 136150: /bin/ksh NAME PRIVILEGE VALUE FLAG ACTION RECIPIENT task.max-cpu-time system 18.4Es inf none - task.max-lwps system 2.15G max deny - project.max-contracts privileged 10.0K - deny - project.max-locked-memory privileged 127MB - deny - project.max-port-ids privileged … risk based approach internal audit