Lines Matching refs:_
9 Usage of Performance Counters for Linux (perf_events) [1]_ , [2]_ , [3]_
12 direct usage of perf_events system call API [2]_ and over data files
13 generated by Perf tool user mode utility (Perf) [3]_ , [4]_ . The risk
15 units (PMU) [2]_ and Perf collect and expose for performance analysis.
31 (PMC) [8]_ and machine specific registers (MSR) [9]_ that provide
47 security access control management [5]_ .
53 into two categories [6]_ : a) privileged processes (whose effective user
61 based on the process's credentials [5]_ (usually: effective UID,
65 into distinct units, known as capabilities [6]_ , which can be
74 for PTRACE_MODE_READ_REALCREDS ptrace access mode check [7]_ , whose
88 Mechanisms of capabilities, privileged capability-dumb files [6]_ and
89 file system ACLs [10]_ can be used to create a dedicated group of
112 privileges [6]_ :
128 or root running processes with CAP_SETPCAP, CAP_SETFCAP [6]_
135 is governed by perf_event_paranoid [2]_ setting:
139 performance monitoring. Per-user per-cpu perf_event_mlock_kb [2]_
152 [6]_ capability.
175 The perf_events system call API [2]_ allocates file descriptors for
177 accountable resource governed by the RLIMIT_NOFILE [11]_ limit
182 modifying content of the limits.conf file [12]_ . Ordinarily, a Perf
191 performance monitoring data is governed by the perf_event_mlock_kb [2]_
195 RLIMIT_MEMLOCK [11]_ limit, but only for memory regions mapped
218 .. [1] `<https://lwn.net/Articles/337493/>`_
219 .. [2] `<http://man7.org/linux/man-pages/man2/perf_event_open.2.html>`_
220 .. [3] `<http://web.eece.maine.edu/~vweaver/projects/perf_events/>`_
221 .. [4] `<https://perf.wiki.kernel.org/index.php/Main_Page>`_
222 .. [5] `<https://www.kernel.org/doc/html/latest/security/credentials.html>`_
223 .. [6] `<http://man7.org/linux/man-pages/man7/capabilities.7.html>`_
224 .. [7] `<http://man7.org/linux/man-pages/man2/ptrace.2.html>`_
225 .. [8] `<https://en.wikipedia.org/wiki/Hardware_performance_counter>`_
226 .. [9] `<https://en.wikipedia.org/wiki/Model-specific_register>`_
227 .. [10] `<http://man7.org/linux/man-pages/man5/acl.5.html>`_
228 .. [11] `<http://man7.org/linux/man-pages/man2/getrlimit.2.html>`_
229 .. [12] `<http://man7.org/linux/man-pages/man5/limits.conf.5.html>`_