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procps-ng-3.3.8-accuracy.dif
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File procps-ng-3.3.8-accuracy.dif of Package procps
--- ps/common.h | 1 + ps/global.c | 5 ++++- ps/output.c | 19 ++++++++++--------- 3 files changed, 15 insertions(+), 10 deletions(-) --- ps/common.h +++ ps/common.h 2018-04-04 11:14:33.915688098 +0000 @@ -303,6 +303,7 @@ extern int running_only; extern int screen_cols; extern int screen_rows; extern time_t seconds_since_boot; +extern unsigned long long jiffies_since_boot; extern selection_node *selection_list; extern unsigned simple_select; extern sort_node *sort_list; --- ps/global.c +++ ps/global.c 2018-04-04 11:14:33.915688098 +0000 @@ -78,6 +78,7 @@ int prefer_bsd_defaults = -1 int screen_cols = -1; int screen_rows = -1; time_t seconds_since_boot = -1; +unsigned long long jiffies_since_boot = -1; selection_node *selection_list = (selection_node *)0xdeadbeef; unsigned simple_select = 0xffffffff; sort_node *sort_list = (sort_node *)0xdeadbeef; /* ready-to-use sort list */ @@ -361,6 +362,7 @@ static const char *set_personality(void) /************ Call this to reinitialize everything ***************/ void reset_global(void){ static proc_t p; + double uptime_secs; reset_selection_list(); look_up_our_self(&p); set_screen_size(); @@ -383,7 +385,8 @@ void reset_global(void){ negate_selection = 0; page_size = getpagesize(); running_only = 0; - seconds_since_boot = uptime(0,0); + seconds_since_boot = uptime(&uptime_secs,0); + jiffies_since_boot = ((long double)uptime_secs * Hertz); selection_list = NULL; simple_select = 0; sort_list = NULL; --- ps/output.c +++ ps/output.c 2018-04-04 11:14:33.915688098 +0000 @@ -134,6 +134,7 @@ static int sr_ ## NAME (const proc_t* P, #define cook_time(P) (P->utime + P->stime) / Hertz #define cook_etime(P) (((unsigned long long)seconds_since_boot >= (P->start_time / Hertz)) ? ((unsigned long long)seconds_since_boot - (P->start_time / Hertz)) : 0) +#define cook_jtime(P) (((unsigned long long)jiffies_since_boot >= (P->start_time)) ? ((unsigned long long)jiffies_since_boot - (P->start_time)) : 0) #define CMP_COOKED_TIME(NAME) \ static int sr_ ## NAME (const proc_t* P, const proc_t* Q) { \ @@ -507,11 +508,11 @@ static int pr_etimes(char *restrict cons static int pr_c(char *restrict const outbuf, const proc_t *restrict const pp){ unsigned long long total_time; /* jiffies used by this process */ unsigned pcpu = 0; /* scaled %cpu, 99 means 99% */ - unsigned long long seconds; /* seconds of process life */ + unsigned long long jiffies; /* jiffies of process life */ total_time = pp->utime + pp->stime; if(include_dead_children) total_time += (pp->cutime + pp->cstime); - seconds = cook_etime(pp); - if(seconds) pcpu = (total_time * 100ULL / Hertz) / seconds; + jiffies = cook_jtime(pp); + if(jiffies) pcpu = (total_time * 100ULL) / jiffies; if (pcpu > 99U) pcpu = 99U; return snprintf(outbuf, COLWID, "%2u", pcpu); } @@ -519,11 +520,11 @@ static int pr_c(char *restrict const out static int pr_pcpu(char *restrict const outbuf, const proc_t *restrict const pp){ unsigned long long total_time; /* jiffies used by this process */ unsigned pcpu = 0; /* scaled %cpu, 999 means 99.9% */ - unsigned long long seconds; /* seconds of process life */ + unsigned long long jiffies; /* jiffies of process life */ total_time = pp->utime + pp->stime; if(include_dead_children) total_time += (pp->cutime + pp->cstime); - seconds = cook_etime(pp); - if(seconds) pcpu = (total_time * 1000ULL / Hertz) / seconds; + jiffies = cook_jtime(pp); + if(jiffies) pcpu = (total_time * 1000ULL) / jiffies; if (pcpu > 999U) return snprintf(outbuf, COLWID, "%u", pcpu/10U); return snprintf(outbuf, COLWID, "%u.%u", pcpu/10U, pcpu%10U); @@ -532,11 +533,11 @@ static int pr_pcpu(char *restrict const static int pr_cp(char *restrict const outbuf, const proc_t *restrict const pp){ unsigned long long total_time; /* jiffies used by this process */ unsigned pcpu = 0; /* scaled %cpu, 999 means 99.9% */ - unsigned long long seconds; /* seconds of process life */ + unsigned long long jiffies; /* jiffies of process life */ total_time = pp->utime + pp->stime; if(include_dead_children) total_time += (pp->cutime + pp->cstime); - seconds = cook_etime(pp); - if(seconds) pcpu = (total_time * 1000ULL / Hertz) / seconds; + jiffies = cook_jtime(pp); + if(jiffies) pcpu = (total_time * 1000ULL) / jiffies; if (pcpu > 999U) pcpu = 999U; return snprintf(outbuf, COLWID, "%3u", pcpu); }
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