Lines Matching refs:period
10 The bandwidth allowed for a group is specified using a quota and period. Within
11 each given "period" (microseconds), a group is allowed to consume only up to
13 group exceeds this limit (for that period), the tasks belonging to its
15 period.
18 above at each period boundary. As threads consume this bandwidth it is
24 Quota and period are managed within the cpu subsystem via cgroupfs.
26 cpu.cfs_quota_us: the total available run-time within a period (in microseconds)
27 cpu.cfs_period_us: the length of a period (in microseconds)
40 The minimum quota allowed for the quota or period is 1ms. There is also an
41 upper bound on the period length of 1s. Additional restrictions exist when
87 a. it fully consumes its own quota within a period
88 b. a parent's quota is fully consumed within its period
97 If period is 250ms and quota is also 250ms, the group will get
101 # echo 250000 > cpu.cfs_period_us /* period = 250ms */
105 With 500ms period and 1000ms quota, the group can get 2 CPUs worth of
109 # echo 500000 > cpu.cfs_period_us /* period = 500ms */
111 The larger period here allows for increased burst capacity.
115 With 50ms period, 10ms quota will be equivalent to 20% of 1 CPU.
118 # echo 50000 > cpu.cfs_period_us /* period = 50ms */
120 By using a small period here we are ensuring a consistent latency