diff options
| -rw-r--r-- | Makefile | 24 | ||||
| -rw-r--r-- | px.c | 168 | ||||
| -rw-r--r-- | px.sh | 7 |
3 files changed, 199 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..59bd863 --- /dev/null +++ b/Makefile @@ -0,0 +1,24 @@ +ALL=px + +CFLAGS=-g -O2 -Wall -Wno-switch -Wextra -Wwrite-strings +LDFLAGS=-lprocps + +DESTDIR= +PREFIX=/usr/local +BINDIR=$(PREFIX)/bin +MANDIR=$(PREFIX)/share/man + +all: $(ALL) + +clean: FRC + rm -f $(ALL) + +install: FRC all + mkdir -p $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1 + install -m0755 $(ALL) $(DESTDIR)$(BINDIR) + install -m0644 $(ALL:=.1) $(DESTDIR)$(MANDIR)/man1 + +README: px.1 + mandoc -Tutf8 $< | col -bx >$@ + +FRC: diff --git a/px.c b/px.c new file mode 100644 index 0000000..7547c00 --- /dev/null +++ b/px.c @@ -0,0 +1,168 @@ +// gcc -g -O2 -Wall -o px px.c -lprocps + +#include <sys/sysinfo.h> + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include <proc/readproc.h> + +time_t seconds_since_boot; +int Hertz; + +static int want_this_proc_pcpu(proc_t *buf){ + unsigned long long used_jiffies; + unsigned long pcpu = 0; + unsigned long long seconds; + +// if(!want_this_proc(buf)) return 0; + + used_jiffies = buf->utime + buf->stime; +// if(include_dead_children) used_jiffies += (buf->cutime + buf->cstime); + + seconds = seconds_since_boot - buf->start_time / Hertz; + if(seconds) pcpu = (used_jiffies * 1000ULL / Hertz) / seconds; + + buf->pcpu = pcpu; // fits in an int, summing children on 128 CPUs + + return 1; +} + +static void +print_human(intmax_t i) +{ + double d = i; + const char *u = "\0\0K\0M\0G\0T\0P\0E\0Z\0Y\0"; + while (d >= 1024) { + u += 2; + d /= 1024.0; + } + + if (!*u) + printf("%5.0f", d); + else if (d < 10.0) + printf("%4.1f%s", d, u); + else + printf("%4.0f%s", d, u); +} + +int +main(int argc, char *argv[]) +{ + proc_t **result; + int hz; + + if((hz = sysconf(_SC_CLK_TCK)) > 0){ + Hertz = hz; + } else { + Hertz = 100; /* shrug */ + } + + struct sysinfo si; + sysinfo(&si); + + seconds_since_boot = si.uptime; + time_t now = time(0); + + result = readproctab(PROC_FILLMEM | PROC_FILLCOM | PROC_FILLUSR | + PROC_FILLSTAT | PROC_FILLSTATUS); + + int matched = 0; + + for (; *result; result++) { + proc_t *p = *result; + + if (argc > 0) { + for (int i = 1; i < argc; i++) + if (strstr(p->cmd, argv[i])) + goto match; + continue; +match: + matched++; + } else { + matched++; + } + + if (matched == 1) + printf(" PID USER %%CPU VSZ RSS START ELAPSED TIME COMMAND\n"); + + want_this_proc_pcpu(p); + + printf("%5d", p->tid); + printf(" %-8.8s", p->euser); + printf(" %4.1f", p->pcpu/10.0); + print_human(p->vm_size*1024); + print_human(p->vm_rss*1024); + + time_t start; + time_t seconds_ago; + start = (now - si.uptime) + p->start_time / Hertz; + seconds_ago = now - start; + if(seconds_ago < 0) seconds_ago=0; + + char buf[7]; + if (seconds_ago > 3600*24) + strftime(buf, sizeof buf, "%b%d", localtime(&start)); + else + strftime(buf, sizeof buf, "%H:%M", localtime(&start)); + printf(" %s", buf); + + time_t t = seconds_ago; + unsigned dd,hh,mm,ss; + ss = t%60; + t /= 60; + mm = t%60; + t /= 60; + hh = t%24; + t /= 24; + dd = t; + + if (dd) + printf(" %3ud%02uh", dd, hh); + else if (hh) + printf(" %2uh%02um", hh, mm); + else + printf(" %2u:%02u", mm, ss); + + + t = (p->utime + p->stime) / Hertz; + ss = t%60; + t /= 60; + mm = t%60; + t /= 60; + hh = t%24; + + if (hh) + printf(" %3uh%02u", hh, mm); + else + printf(" %2u:%02u", mm, ss); + + if (p->cmdline) { + for (int i = 0; p->cmdline[i]; i++) { + printf(" %s", p->cmdline[i]); + } + } else { + // kernel threads + printf(" [%s]", p->cmd); + } + + if (p->state == 'Z') + printf(" <defunct>"); + printf("\n"); + +#if 0 + printf("%d %s %f %ld %ld %ld %lld %lld %lld %s\n", + p->tid, p->euser, p->pcpu/10.0, pmem, + p->vm_size, p->vm_rss, p->start_time, 0ULL, p->utime, + p->cmd + ); +#endif + } + +// freeproctab(result); + + exit(matched > 0); +} diff --git a/px.sh b/px.sh new file mode 100644 index 0000000..f389a0b --- /dev/null +++ b/px.sh @@ -0,0 +1,7 @@ +px() { + ps wwp ${$(pgrep -d, "${(j:|:)@}"):?no matches} \ + -o pid,user:6,%cpu,%mem,vsz:10,rss:10,bsdstart,etime:12,bsdtime,args | + sed '1s/ \(VSZ\|RSS\)/\1/g' | + numfmt --header --field 5,6 --from-unit=1024 --to=iec --format "%5f" +} + |