mirror of
https://github.com/Llewellynvdm/conky.git
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new cpu % routines in top.c and linux.c
git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky@431 7f574dfc-610e-0410-a909-a81674777703
This commit is contained in:
David Carter
parent
7574c5cca1
commit
67ab68914a
@ -1,4 +1,6 @@
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# $Id$
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2005-11-27
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* new code in linux.c and top.c to calculate CPU % correctly on 2.6 kernels.
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2005-11-24
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* Fixed gentoo bug# 113219
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@ -27,7 +27,7 @@ double get_time()
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{
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struct timeval tv;
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gettimeofday(&tv, 0);
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return tv.tv_sec + tv.tv_usec / 1000000.0;
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return tv.tv_sec + (tv.tv_usec / 1000000.0);
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}
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FILE *open_file(const char *file, int *reported)
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@ -2751,17 +2751,17 @@ static void generate_text()
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}
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OBJ(processes) {
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if (!use_spacer)
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snprintf(p, n, "%d", cur->procs);
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snprintf(p, n, "%hu", cur->procs);
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else
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snprintf(p, 5, "%d ",
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snprintf(p, 5, "%hu ",
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cur->procs);
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}
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OBJ(running_processes) {
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if (!use_spacer)
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snprintf(p, n, "%d",
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snprintf(p, n, "%hu",
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cur->run_procs);
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else
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snprintf(p, 3, "%d ",
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snprintf(p, 3, "%hu ",
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cur->run_procs);
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}
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OBJ(text) {
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17
src/conky.h
17
src/conky.h
@ -172,8 +172,8 @@ struct information {
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unsigned long mem, memmax, swap, swapmax;
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unsigned long bufmem, buffers, cached;
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unsigned int procs;
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unsigned int run_procs;
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unsigned short procs;
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unsigned short run_procs;
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float *cpu_usage;
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/* struct cpu_stat cpu_summed; what the hell is this? */
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@ -200,8 +200,21 @@ struct information {
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#ifdef TCP_PORT_MONITOR
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tcp_port_monitor_collection_t * p_tcp_port_monitor_collection;
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#endif
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short kflags; /* kernel settings, see enum KFLAG */
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};
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enum {
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KFLAG_IS_LONGSTAT = 0x01, /* set to true if kernel uses "long" format for /proc/stats */
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KFLAG_PROC_IS_THREADS=0x02 /* set to true if kernel shows # of threads for the proc value in sysinfo() call */
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/* KFLAG_NEXT_ONE=0x04 bits 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 available for future use */
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};
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#define KFLAG_SETON(a) info.kflags |= a
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#define KFLAG_SETOFF(a) info.kflags &= (~a)
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#define KFLAG_FLIP(a) info.kflags ^= a
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#define KFLAG_ISSET(a) info.kflags & a
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int out_to_console;
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int top_cpu;
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154
src/linux.c
154
src/linux.c
@ -29,6 +29,10 @@
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#include <net/if.h>
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#include <math.h>
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#define SHORTSTAT_TEMPL "%*s %llu %llu %llu"
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#define LONGSTAT_TEMPL "%*s %llu %llu %llu "
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static struct sysinfo s_info;
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static int show_nice_processes;
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@ -326,11 +330,18 @@ void update_total_processes()
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#define CPU_SAMPLE_COUNT 15
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struct cpu_info {
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unsigned long cpu_user;
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unsigned long cpu_system;
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unsigned long cpu_nice;
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double last_cpu_sum;
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unsigned long clock_ticks;
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unsigned long long cpu_user;
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unsigned long long cpu_system;
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unsigned long long cpu_nice;
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unsigned long long cpu_idle;
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unsigned long long cpu_iowait;
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unsigned long long cpu_irq;
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unsigned long long cpu_softirq;
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unsigned long long cpu_steal;
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unsigned long long cpu_total;
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unsigned long long cpu_active_total;
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unsigned long long cpu_last_total;
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unsigned long long cpu_last_active_total;
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double cpu_val[CPU_SAMPLE_COUNT];
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};
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static short cpu_setup = 0;
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@ -339,6 +350,18 @@ static int rep;
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static FILE *stat_fp;
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/*
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determine if this kernel gives us "extended" statistics information in /proc/stat.
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Kernels around 2.5 and earlier only reported user, system, nice and idle values in proc stat.
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Kernels around 2.6 and greater report these PLUS iowait, irq, softirq, and steal
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*/
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void determine_longstat(char * buf) {
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unsigned long long iowait=0;
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KFLAG_SETOFF(KFLAG_IS_LONGSTAT);
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/* scanf will either return -1 or 1 because there is only 1 assignment */
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if (sscanf(buf, "%*s %*d %*d %*d %*d %llu",&iowait)>0) KFLAG_SETON(KFLAG_IS_LONGSTAT);
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}
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void get_cpu_count()
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{
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char buf[256];
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@ -356,12 +379,18 @@ void get_cpu_count()
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break;
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if (strncmp(buf, "cpu", 3) == 0 && isdigit(buf[3])) {
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if (info.cpu_count == 0) {
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determine_longstat(buf);
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}
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info.cpu_count++;
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}
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}
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info.cpu_usage = malloc((info.cpu_count + 1) * sizeof(float));
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}
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#define TMPL_LONGSTAT "%*s %llu %llu %llu %llu %llu %llu %llu %llu"
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#define TMPL_SHORTSTAT "%*s %llu %llu %llu %llu"
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inline static void update_stat()
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{
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@ -370,20 +399,25 @@ inline static void update_stat()
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unsigned int i;
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unsigned int index;
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double curtmp;
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char * stat_template=NULL;
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unsigned int malloc_cpu_size=0;
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if (!cpu_setup) {
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get_cpu_count();
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cpu_setup = 1;
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}
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if (stat_template == NULL) {
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stat_template = KFLAG_ISSET(KFLAG_IS_LONGSTAT) ? TMPL_LONGSTAT : TMPL_SHORTSTAT ;
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}
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if (cpu == NULL) {
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cpu = malloc((info.cpu_count + 1) * sizeof(struct cpu_info));
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for (index = 0; index < info.cpu_count + 1; ++index) {
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cpu[index].clock_ticks = 0;
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cpu[index].last_cpu_sum = 0;
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for (i = 0; i < CPU_SAMPLE_COUNT; ++i) {
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cpu[index].cpu_val[i] = 0;
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}
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}
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malloc_cpu_size = (info.cpu_count + 1) * sizeof(struct cpu_info);
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cpu = malloc(malloc_cpu_size);
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memset(cpu, 0, malloc_cpu_size);
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}
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if (stat_fp == NULL) {
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stat_fp = open_file("/proc/stat", &rep);
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} else {
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@ -398,57 +432,61 @@ inline static void update_stat()
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break;
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if (strncmp(buf, "procs_running ", 14) == 0) {
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sscanf(buf, "%*s %d", &info.run_procs);
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sscanf(buf, "%*s %hu", &info.run_procs);
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info.mask |= (1 << INFO_RUN_PROCS);
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} else if (strncmp(buf, "cpu ", 4) == 0) {
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sscanf(buf, "%*s %lu %lu %lu", &(cpu[index].cpu_user), &(cpu[index].cpu_nice), &(cpu[index].cpu_system));
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index++;
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info.mask |= (1 << INFO_CPU);
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} else if (strncmp(buf, "cpu", 3) == 0 && isdigit(buf[3]) && index <= info.cpu_count) {
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sscanf(buf, "%*s %lu %lu %lu", &(cpu[index].cpu_user), &(cpu[index].cpu_nice), &(cpu[index].cpu_system));
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index++;
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info.mask |= (1 << INFO_CPU);
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}
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}
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for (index = 0; index < info.cpu_count + 1; index++) {
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double delta;
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delta = current_update_time - last_update_time;
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if (delta <= 0.001) {
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return;
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}
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} else if (strncmp(buf, "cpu", 3) == 0) {
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index = isdigit(buf[3]) ? ((int)buf[3]) - 0x2F : 0;
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sscanf(buf, stat_template
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, &(cpu[index].cpu_user)
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, &(cpu[index].cpu_nice)
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, &(cpu[index].cpu_system)
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, &(cpu[index].cpu_idle)
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, &(cpu[index].cpu_iowait)
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, &(cpu[index].cpu_irq)
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, &(cpu[index].cpu_softirq)
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, &(cpu[index].cpu_steal)
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);
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if (cpu[index].clock_ticks == 0) {
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cpu[index].clock_ticks = sysconf(_SC_CLK_TCK);
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}
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curtmp = 0;
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cpu[index].cpu_val[0] =
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(cpu[index].cpu_user + cpu[index].cpu_nice + cpu[index].cpu_system -
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cpu[index].last_cpu_sum) / delta / (double) cpu[index].clock_ticks;
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for (i = 0; i < info.cpu_avg_samples; i++) {
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curtmp += cpu[index].cpu_val[i];
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}
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if (index == 0) {
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info.cpu_usage[index] = curtmp / info.cpu_avg_samples / info.cpu_count;
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} else {
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cpu[index].cpu_total = cpu[index].cpu_user
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+ cpu[index].cpu_nice
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+ cpu[index].cpu_system
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+ cpu[index].cpu_idle
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+ cpu[index].cpu_iowait
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+ cpu[index].cpu_irq
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+ cpu[index].cpu_softirq
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+ cpu[index].cpu_steal
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;
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cpu[index].cpu_active_total = cpu[index].cpu_total - (cpu[index].cpu_idle + cpu[index].cpu_iowait);
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info.mask |= (1 << INFO_CPU);
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double delta = current_update_time - last_update_time;
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if (delta <= 0.001) return;
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cpu[index].cpu_val[0] = (cpu[index].cpu_active_total - cpu[index].cpu_last_active_total) /
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(float )(cpu[index].cpu_total - cpu[index].cpu_last_total);
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curtmp = 0;
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for (i=0; i < info.cpu_avg_samples; i++ ) {
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curtmp += cpu[index].cpu_val[i];
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}
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/* TESTING -- I've removed this, because I don't think it is right. You shouldn't divide
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by the cpu count here ... removing for testing */
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if (index == 0) {
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info.cpu_usage[index] = curtmp / info.cpu_avg_samples / info.cpu_count;
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} else {
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info.cpu_usage[index] = curtmp / info.cpu_avg_samples;
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}
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/* TESTING -- this line replaces the prev. "suspect" if/else */
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info.cpu_usage[index] = curtmp / info.cpu_avg_samples;
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cpu[index].cpu_last_total = cpu[index].cpu_total;
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cpu[index].cpu_last_active_total = cpu[index].cpu_active_total;
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for (i = info.cpu_avg_samples - 1; i > 0; i--) {
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cpu[index].cpu_val[i] = cpu[index].cpu_val[i - 1];
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}
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}
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cpu[index].last_cpu_sum = cpu[index].cpu_user + cpu[index].cpu_nice + cpu[index].cpu_system;
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for (i = info.cpu_avg_samples; i > 1; i--)
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cpu[index].cpu_val[i - 1] = cpu[index].cpu_val[i - 2];
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}
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// test code
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// this is for getting proc shit
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// pee pee
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// poo
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//
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}
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void update_running_processes()
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57
src/top.c
57
src/top.c
@ -8,9 +8,8 @@
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#include "top.h"
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static regex_t *exclusion_expression = 0;
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static unsigned long g_time = 0;
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static unsigned long previous_total = 0;
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static unsigned long long previous_total = 0;
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static struct process *first_process = 0;
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struct process *get_first_process()
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@ -88,8 +87,8 @@ static int calculate_cpu(struct process *);
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static void process_cleanup(void);
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static void delete_process(struct process *);
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/*inline void draw_processes(void);*/
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static unsigned long calc_cpu_total(void);
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static void calc_cpu_each(unsigned long);
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static unsigned long long calc_cpu_total(void);
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static void calc_cpu_each(unsigned long long);
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/******************************************/
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@ -210,7 +209,7 @@ static int process_parse_stat(struct process *process)
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/* store only the difference of the user_time here... */
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process->user_time = user_time;
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process->kernel_time = kernel_time;
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return 0;
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}
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@ -282,9 +281,10 @@ static int calculate_cpu(struct process *process)
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/*
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* Check name against the exclusion list
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*/
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if (process->counted && exclusion_expression
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/* if (process->counted && exclusion_expression
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&& !regexec(exclusion_expression, process->name, 0, 0, 0))
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process->counted = 0;
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*/
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return 0;
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}
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@ -347,31 +347,38 @@ static void delete_process(struct process *p)
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/******************************************/
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/* Calculate cpu total */
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/******************************************/
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#define TMPL_SHORTPROC "%*s %llu %llu %llu %llu"
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#define TMPL_LONGPROC "%*s %llu %llu %llu %llu %llu %llu %llu %llu"
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static unsigned long calc_cpu_total()
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static unsigned long long calc_cpu_total()
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{
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unsigned long total = 0;
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unsigned long t = 0;
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unsigned long long total = 0;
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unsigned long long t = 0;
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int rc;
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int ps;
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char line[BUFFER_LEN];
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unsigned long cpu = 0;
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unsigned long nice = 0;
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unsigned long system = 0;
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unsigned long idle = 0;
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unsigned long long cpu = 0;
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unsigned long long nice = 0;
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unsigned long long system = 0;
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unsigned long long idle = 0;
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unsigned long long iowait = 0;
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unsigned long long irq = 0;
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unsigned long long softirq = 0;
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unsigned long long steal = 0;
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char * template = KFLAG_ISSET(KFLAG_IS_LONGSTAT) ? TMPL_LONGPROC : TMPL_SHORTPROC;
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ps = open("/proc/stat", O_RDONLY);
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rc = read(ps, line, sizeof(line));
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close(ps);
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if (rc < 0)
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return 0;
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sscanf(line, "%*s %lu %lu %lu %lu", &cpu, &nice, &system, &idle);
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total = cpu + nice + system + idle;
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sscanf(line, template, &cpu, &nice, &system, &idle, &iowait, &irq, &softirq, &steal);
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total = cpu + nice + system + idle + iowait + irq + softirq + steal;
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t = total - previous_total;
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previous_total = total;
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return t;
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}
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@ -379,18 +386,13 @@ static unsigned long calc_cpu_total()
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/* Calculate each processes cpu */
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/******************************************/
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inline static void calc_cpu_each(unsigned long total)
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inline static void calc_cpu_each(unsigned long long total)
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{
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struct process *p = first_process;
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while (p) {
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/*p->amount = total ?
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(100.0 * (float) (p->user_time + p->kernel_time) /
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total) : 0; */
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p->amount =
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100.0 * ((float)(p->user_time + p->kernel_time) / (float)total);
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100.0 * (p->user_time + p->kernel_time) / (float)total;
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/* if (p->amount > 100)
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p->amount = 0;*/
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p = p->next;
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}
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}
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@ -399,14 +401,11 @@ inline static void calc_cpu_each(unsigned long total)
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/* Find the top processes */
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/******************************************/
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//static int tot_struct; //for debugging..uncomment this and the 2 printfs in the next two functs
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/*
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* free a sp_process structure
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*/
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void free_sp(struct sorted_process * sp) {
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free(sp);
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// printf("free: %d structs\n",--tot_struct );
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}
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/*
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@ -418,7 +417,6 @@ struct sorted_process * malloc_sp(struct process * proc) {
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sp->greater = NULL;
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sp->less = NULL;
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sp->proc = proc;
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// printf("malloc: %d structs\n", ++tot_struct);
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return(sp);
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}
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@ -521,7 +519,7 @@ inline void process_find_top(struct process **cpu, struct process **mem)
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struct sorted_process *spc_head = NULL, *spc_tail = NULL, *spc_cur = NULL;
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struct sorted_process *spm_head = NULL, *spm_tail = NULL, *spm_cur = NULL;
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struct process *cur_proc = NULL;
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unsigned long total = 0;
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unsigned long long total = 0;
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if (!top_cpu && !top_mem) return;
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@ -533,7 +531,6 @@ inline void process_find_top(struct process **cpu, struct process **mem)
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cur_proc = first_process;
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while (cur_proc !=NULL) {
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//printf("\n\n cur_proc: %s %f %f\n",cur_proc->name, cur_proc->totalmem, cur_proc->amount );
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if (top_cpu) {
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spc_cur = malloc_sp(cur_proc);
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insert_sp_element(spc_cur, &spc_head, &spc_tail, MAX_SP, &compare_cpu);
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