Lines Matching +full:pressure +full:- +full:max

4 PSI - Pressure Stall Information
14 either play it safe and under-utilize their hardware resources, or
23 scarcity aids users in sizing workloads to hardware--or provisioning
34 Pressure interface
37 Pressure information for each resource is exported through the
38 respective file in /proc/pressure/ -- cpu, memory, and io.
48 The "full" line indicates the share of time in which all non-idle
67 Monitoring for pressure thresholds
71 pressure exceeds certain thresholds.
78 /proc/pressure/ representing the resource to be monitored and write the
85 For example writing "some 150000 1000000" into /proc/pressure/memory
87 1sec time window. Writing "full 50000 1000000" into /proc/pressure/io
103 monitoring update interval is 50ms and max is 1s. Min limit is set to
104 prevent overly frequent polling. Max limit is chosen as a high enough number
116 Notifications to the userspace are rate-limited to one per tracking window.
118 The trigger will de-register when the file descriptor used to define the
142 	fds.fd = open("/proc/pressure/memory", O_RDWR | O_NONBLOCK);
144 		printf("/proc/pressure/memory open error: %s\n",
151 		printf("/proc/pressure/memory write error: %s\n",
158 		n = poll(&fds, 1, -1);
182 mounted, pressure stall information is also tracked for tasks grouped
184 cpu.pressure, memory.pressure, and io.pressure files; the format is
185 the same as the /proc/pressure/ files.
187 Per-cgroup psi monitors can be specified and used the same way as
188 system-wide ones.