/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_SCHED_LOADAVG_H #define _LINUX_SCHED_LOADAVG_H /* * These are the constant used to fake the fixed-point load-average * counting. Some notes: * - 11 bit fractions expand to 22 bits by the multiplies: this gives * a load-average precision of 10 bits integer + 11 bits fractional * - if you want to count load-averages more often, you need more * precision, or rounding will get you. With 2-second counting freq, * the EXP_n values would be 1981, 2034 and 2043 if still using only * 11 bit fractions. */ extern unsigned long avenrun[]; /* Load averages */ extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift); #define FSHIFT 11 /* nr of bits of precision */ #define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */ #define LOAD_FREQ (5*HZ+1) /* 5 sec intervals */ #define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */ #define EXP_5 2014 /* 1/exp(5sec/5min) */ #define EXP_15 2037 /* 1/exp(5sec/15min) */ #define CALC_LOAD(load,exp,n) \ load *= exp; \ load += n*(FIXED_1-exp); \ load >>= FSHIFT; extern void calc_global_load(unsigned long ticks); #endif /* _LINUX_SCHED_LOADAVG_H */
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autogroup.h | File | 1.2 KB | 0644 |
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clock.h | File | 2.45 KB | 0644 |
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coredump.h | File | 2.75 KB | 0644 |
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cpufreq.h | File | 887 B | 0644 |
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cputime.h | File | 5.13 KB | 0644 |
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deadline.h | File | 597 B | 0644 |
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debug.h | File | 1.41 KB | 0644 |
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hotplug.h | File | 578 B | 0644 |
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idle.h | File | 1.77 KB | 0644 |
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init.h | File | 240 B | 0644 |
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isolation.h | File | 1.33 KB | 0644 |
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jobctl.h | File | 1.46 KB | 0644 |
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loadavg.h | File | 1.17 KB | 0644 |
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mm.h | File | 7.63 KB | 0644 |
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nohz.h | File | 1.22 KB | 0644 |
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numa_balancing.h | File | 1.26 KB | 0644 |
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prio.h | File | 1.71 KB | 0644 |
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rt.h | File | 1.41 KB | 0644 |
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signal.h | File | 17.79 KB | 0644 |
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smt.h | File | 415 B | 0644 |
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stat.h | File | 1.02 KB | 0644 |
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sysctl.h | File | 2.5 KB | 0644 |
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task.h | File | 3.9 KB | 0644 |
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task_stack.h | File | 3.03 KB | 0644 |
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topology.h | File | 6.18 KB | 0644 |
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user.h | File | 1.7 KB | 0644 |
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wake_q.h | File | 1.79 KB | 0644 |
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xacct.h | File | 854 B | 0644 |
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