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did -s and -f for rodenstein

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This commit is contained in:
albert
2002-11-28 09:07:59 +00:00
parent 4e7de4274d
commit c64633ab31
2 changed files with 99 additions and 17 deletions
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103
vmstat.c
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@ -1,5 +1,6 @@
/* Copyright 1994 by Henry Ware <al172@yfn.ysu.edu>. Copyleft same year. */
// old: "Copyright 1994 by Henry Ware <al172@yfn.ysu.edu>. Copyleft same year."
// most code copyright 2002 Albert Cahalan
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
@ -98,8 +99,9 @@ static void getrunners(unsigned int *restrict running, unsigned int *restrict bl
static void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow,
unsigned *restrict pin, unsigned *restrict pout, unsigned *restrict s_in, unsigned *restrict sout,
unsigned *restrict itot, unsigned *restrict i1, unsigned *restrict ct,
unsigned int *restrict running, unsigned int *restrict blocked) {
unsigned *restrict intr, unsigned *restrict ctxt,
unsigned int *restrict running, unsigned int *restrict blocked,
unsigned int *restrict btime, unsigned int *restrict processes) {
static int fd;
int need_vmstat_file = 0;
int need_proc_scan = 0;
@ -113,8 +115,7 @@ static void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csy
if(fd == -1) crash("/proc/stat");
}
read(fd,buff,BUFFSIZE-1);
*itot = 0;
*i1 = 1; /* ensure assert below will fail if the sscanf bombs */
*intr = 0;
*ciow = 0; /* not separated out until the 2.5.41 kernel */
b = strstr(buff, "cpu ");
@ -129,10 +130,16 @@ static void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csy
else need_vmstat_file = 1;
b = strstr(buff, "intr ");
if(b) sscanf(b, "intr %u %u", itot, i1);
if(b) sscanf(b, "intr %u", intr);
b = strstr(buff, "ctxt ");
if(b) sscanf(b, "ctxt %u", ct);
if(b) sscanf(b, "ctxt %u", ctxt);
b = strstr(buff, "btime ");
if(b) sscanf(b, "btime %u", btime);
b = strstr(buff, "processes ");
if(b) sscanf(b, "processes %u", processes);
b = strstr(buff, "procs_running ");
if(b) sscanf(b, "procs_running %u", running);
@ -245,11 +252,11 @@ static void new_format(void) {
unsigned int tog=0; /* toggle switch for cleaner code */
unsigned int i;
unsigned int hz = Hertz;
unsigned int running,blocked;
unsigned int running,blocked,dummy_1,dummy_2;
jiff cpu_use[2], cpu_nic[2], cpu_sys[2], cpu_idl[2], cpu_iow[2];
jiff duse,dsys,didl,diow,Div,divo2;
jiff duse, dsys, didl, diow, Div, divo2;
unsigned int pgpgin[2], pgpgout[2], pswpin[2], pswpout[2];
unsigned int inter[2],ticks[2],ctxt[2];
unsigned int intr[2], ctxt[2];
unsigned int sleep_half;
unsigned int kb_per_page = sysconf(_SC_PAGESIZE) / 1024;
int debt = 0; // handle idle ticks running backwards
@ -260,8 +267,9 @@ static void new_format(void) {
meminfo();
getstat(cpu_use,cpu_nic,cpu_sys,cpu_idl,cpu_iow,
pgpgin,pgpgout,pswpin,pswpout,
inter,ticks,ctxt,
&running,&blocked);
intr,ctxt,
&running,&blocked,
&dummy_1, &dummy_2);
duse= *cpu_use + *cpu_nic;
dsys= *cpu_sys;
didl= *cpu_idl;
@ -277,7 +285,7 @@ static void new_format(void) {
(unsigned)( (*pswpout * kb_per_page * hz + divo2) / Div ),
(unsigned)( (*pgpgin * hz + divo2) / Div ),
(unsigned)( (*pgpgout * hz + divo2) / Div ),
(unsigned)( (*inter * hz + divo2) / Div ),
(unsigned)( (*intr * hz + divo2) / Div ),
(unsigned)( (*ctxt * hz + divo2) / Div ),
(unsigned)( (100*duse + divo2) / Div ),
(unsigned)( (100*dsys + divo2) / Div ),
@ -293,8 +301,9 @@ static void new_format(void) {
meminfo();
getstat(cpu_use+tog,cpu_nic+tog,cpu_sys+tog,cpu_idl+tog,cpu_iow+tog,
pgpgin+tog,pgpgout+tog,pswpin+tog,pswpout+tog,
inter+tog,ticks+tog,ctxt+tog,
&running,&blocked);
intr+tog,ctxt+tog,
&running,&blocked,
&dummy_1,&dummy_2);
duse= cpu_use[tog]-cpu_use[!tog] + cpu_nic[tog]-cpu_nic[!tog];
dsys= cpu_sys[tog]-cpu_sys[!tog];
didl= cpu_idl[tog]-cpu_idl[!tog];
@ -321,7 +330,7 @@ static void new_format(void) {
(unsigned)( ( (pswpout[tog] - pswpout[!tog])*kb_per_page+sleep_half )/sleep_time ),
(unsigned)( ( pgpgin [tog] - pgpgin [!tog] +sleep_half )/sleep_time ),
(unsigned)( ( pgpgout[tog] - pgpgout[!tog] +sleep_half )/sleep_time ),
(unsigned)( ( inter [tog] - inter [!tog] +sleep_half )/sleep_time ),
(unsigned)( ( intr [tog] - intr [!tog] +sleep_half )/sleep_time ),
(unsigned)( ( ctxt [tog] - ctxt [!tog] +sleep_half )/sleep_time ),
(unsigned)( (100*duse+divo2)/Div ),
(unsigned)( (100*dsys+divo2)/Div ),
@ -334,6 +343,58 @@ static void new_format(void) {
//////////////////////////////////////////////////////////////////////////////////////
static void sum_format(void) {
unsigned int running, blocked, btime, processes;
jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow;
unsigned int pgpgin, pgpgout, pswpin, pswpout;
unsigned int intr, ctxt;
meminfo();
getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl, &cpu_iow,
&pgpgin, &pgpgout, &pswpin, &pswpout,
&intr, &ctxt,
&running, &blocked,
&btime, &processes);
printf("%13u kB total memory\n", kb_main_total);
printf("%13u kB used memory\n", kb_main_used);
printf("%13u kB active memory\n", kb_active);
printf("%13u kB inactive memory\n", kb_inactive);
printf("%13u kB free memory\n", kb_main_free);
printf("%13u kB buffer memory\n", kb_main_buffers);
printf("%13u kB swap cache\n", kb_main_cached);
printf("%13u kB total swap\n", kb_swap_total);
printf("%13u kB used swap\n", kb_swap_used);
printf("%13u kB free swap\n", kb_swap_free);
printf("%13Lu non-nice user cpu ticks\n", cpu_use);
printf("%13Lu nice user cpu ticks\n", cpu_nic);
printf("%13Lu system cpu ticks\n", cpu_sys);
printf("%13Lu idle cpu ticks\n", cpu_idl);
printf("%13Lu IO-wait cpu ticks\n", cpu_iow);
printf("%13u pages paged in\n", pgpgin);
printf("%13u pages paged out\n", pgpgout);
printf("%13u pages swapped in\n", pswpin);
printf("%13u pages swapped out\n", pswpout);
printf("%13u interrupts\n", intr);
printf("%13u CPU context switches\n", ctxt);
printf("%13u boot time\n", btime);
printf("%13u forks\n", processes);
}
static void fork_format(void) {
unsigned int running, blocked, btime, processes;
jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow;
unsigned int pgpgin, pgpgout, pswpin, pswpout;
unsigned int intr, ctxt;
getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl, &cpu_iow,
&pgpgin, &pgpgout, &pswpin, &pswpout,
&intr, &ctxt,
&running, &blocked,
&btime, &processes);
printf("%13u forks\n", processes);
}
static int winhi(void) {
struct winsize win;
int rows = 24;
@ -357,10 +418,18 @@ int main(int argc, char *argv[]) {
/* active/inactive mode */
a_option=1;
break;
case 'f':
// FIXME: check for conflicting args
fork_format();
exit(0);
case 'n':
/* print only one header */
moreheaders=FALSE;
break;
case 's':
// FIXME: check for conflicting args
sum_format();
exit(0);
default:
/* no other aguments defined yet. */
usage();