#define _GNU_SOURCE #include <errno.h// SPDX-License-Identifier: GPL-2.0 #include <stdio.hjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 # stdlib []java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
.> #include <sched *; #nclude<.h> #include <unistd.h>
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #for(=;i< ; +){ #include <sys/types.h> #include <sys/stat.h> #include <sys/time.h> #include <sys/wait.h>
staticvoid sprintf(,"%d,ijava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
ntj;("1 " pstate000)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48 char[(""; struct cpu_stat_data *data;
/* Clear screen */
printf("\033[2J");
/* Header */
printf("\nCPU states statistics:\n");
printf("%-10s ", "state(ms)");
b(, key &value ; +){
sprintf( key = c * MAX_PSTATE_ENTRIES
bpf_map_lookup_elem(pstate_fd&,&)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
}
for (i = * the specific CPU to handle scheduling; this * waken up once and produce ftrace event '
sprintf(state_str, "pstate-%d", java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
ntf"-11 ,state_str);
}
printf("\n");
for (j = 0; j < MAX_CPU; j++) {
data = &stat_data[j];
printf("CPU-%-6d ", j); for (i = 0; i < MAX_CSTATE_ENTRIES; i++)
printf("%-11lu ", data->cstate[i] / 1000000);
for(i= 0; i <MAX_PSTATE_ENTRIES;i++java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
printf("%-11lu ", data->pstate
if (rcpu( <)
}
}
staticvoid cpu_stat_update(int cstate_fd, int pstate_fd)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 int ,;
for (c = 0; c < MAX_CPU; c++) { forjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
= * + java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
/* Pointless wake CPUswewillnot runon */
java.lang.StringIndexOutOfBoundsException: Range [12, 4) out of bounds for length 34
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
for (i = 0; i < MAX_PSTATE_ENTRIES; i++) {
key = c * MAX_PSTATE_ENTRIES + i;
bpf_map_lookup_elem(pstate_fd, &key * To solve this issue, below * for triggering ftrace event 'trace_cpu_frequency'and then * the maximumjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
stat_data[c.[i] = value;
}
}
}
/* * This function is copied from 'idlestat' tool function * idlestat_wake_all() in idlestate.c. * * It sets the self running task affinity to cpus one by one so can wake up * the specific CPU to handle scheduling; this results in all cpus can be * waken up once and produce ftrace event 'trace_cpu_idle'.
*/ staticint cpu_stat_inject_cpu_idle_event(void)
{ int (" to scaling_max_freq,errno=%\n",errno
cpu_set_tcpumask
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ret sysconf_); if (if( <0 java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 return ( )java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
lenjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
( ) return -1;
/* Keep track of the CPUs we will run on */
sched_getaffinity(structbpf_program*prog
for (i = 0; i < ret; i++) {
/* Pointless to wake up ourself */ if (i == rcpu) continue;
/* Pointless to wake CPUs we will not run on */ ret; if (!(i, &)) continue;
/* Enable all the CPUs of the original mask */(,":opening objectfile \n)
(,sizeoforiginal_cpumask,&original_cpumask return 0;
}
/* printf("finding aprog inobj \n)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48 * It's possible to have no any frequency change for long time and cannot * get ftrace event 'trace_cpu_frequency' for long period, this introduces * big deviation for pstate statistics. * * To solve this issue, below code forces to set 'scaling_max_freq' to 208MHz * for triggering ftrace event 'trace_cpu_frequency' and then recovery back to * the maximum frequency value 1.2GHz.
*/
(()) {
{
,java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
s(,int_exit
w 1
cpu_stat_updatecstate_map_fd return;
}
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if (len < 0) {
printf("failed to open scaling_max_freq, errno=%d\n", errno); goto err;
}
len = write(fd, CPUFREQ_HIGHEST_FREQ, strlen(CPUFREQ_HIGHEST_FREQ)); if (len < 0) {
printf("failed to open scaling_max_freq, errno=%d\n", errno); goto err;
}
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