* [PATCH] timer (6/6): add cpu steal time fields to procps.
@ 2004-08-05 18:05 Martin Schwidefsky
2004-08-18 13:18 ` Pavel Machek
0 siblings, 1 reply; 2+ messages in thread
From: Martin Schwidefsky @ 2004-08-05 18:05 UTC (permalink / raw)
To: linux-kernel, linux-390; +Cc: arjanv, tim.bird, mulix, alan, crisw, jan.glauber
[PATCH] timer (6/6): add cpu steal time fields to procps.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Make use of the cpu steal time field in /proc/stat that has been
introduces by the cputime patch. The new output of top looks like
this:
top - 09:50:20 up 11 min, 3 users, load average: 8.94, 7.17, 3.82
Tasks: 78 total, 8 running, 70 sleeping, 0 stopped, 0 zombie
Cpu0 : 38.7%us, 4.2%sy, 0.0%ni, 0.0%id, 2.4%wa, 1.8%hi, 0.0%si, 53.0%st
Cpu1 : 38.5%us, 0.6%sy, 0.0%ni, 5.1%id, 1.3%wa, 1.9%hi, 0.0%si, 52.6%st
Cpu2 : 54.0%us, 0.6%sy, 0.0%ni, 0.6%id, 4.9%wa, 1.2%hi, 0.0%si, 38.7%st
Cpu3 : 49.1%us, 0.6%sy, 0.0%ni, 1.2%id, 0.0%wa, 0.0%hi, 0.0%si, 49.1%st
Cpu4 : 35.9%us, 1.2%sy, 0.0%ni, 15.0%id, 0.6%wa, 1.8%hi, 0.0%si, 45.5%s
Cpu5 : 43.0%us, 2.1%sy, 0.7%ni, 0.0%id, 4.2%wa, 1.4%hi, 0.0%si, 48.6%st
Mem: 251832k total, 155448k used, 96384k free, 1212k buffers
Swap: 524248k total, 17716k used, 506532k free, 18096k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
20629 root 25 0 30572 27m 7076 R 55.2 11.1 0:02.14 cc1
20617 root 25 0 40600 37m 7076 R 47.0 15.1 0:03.04 cc1
20635 root 24 0 26356 20m 7076 R 42.3 8.4 0:00.75 cc1
20638 root 25 0 23196 17m 7076 R 27.0 7.2 0:00.46 cc1
20642 root 25 0 15028 9824 7076 R 18.2 3.9 0:00.31 cc1
20644 root 20 0 14852 9648 7076 R 17.0 3.8 0:00.29 cc1
26 root 5 -10 0 0 0 S 0.6 0.0 0:00.03 kblockd/5
915 root 16 0 3012 884 2788 R 0.6 0.4 0:02.33 top
1 root 16 0 2020 284 1844 S 0.0 0.1 0:00.06 init
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff -urN procps-3.2.0/proc/sysinfo.c procps-3.2.0-steal/proc/sysinfo.c
--- procps-3.2.0/proc/sysinfo.c 2004-07-16 09:52:29.000000000 +0200
+++ procps-3.2.0-steal/proc/sysinfo.c 2004-07-16 09:51:44.000000000 +0200
@@ -216,11 +216,11 @@
#define NAN (-0.0)
#endif
#define JT unsigned long long
-void seven_cpu_numbers(double *restrict uret, double *restrict nret, double *restrict sret, double *restrict iret, double *restrict wret, double *restrict xret, double *restrict yret){
- double tmp_u, tmp_n, tmp_s, tmp_i, tmp_w, tmp_x, tmp_y;
+void seven_cpu_numbers(double *restrict uret, double *restrict nret, double *restrict sret, double *restrict iret, double *restrict wret, double *restrict xret, double *restrict yret, double *restrict zret){
+ double tmp_u, tmp_n, tmp_s, tmp_i, tmp_w, tmp_x, tmp_y, tmp_z;
double scale; /* scale values to % */
- static JT old_u, old_n, old_s, old_i, old_w, old_x, old_y;
- JT new_u, new_n, new_s, new_i, new_w, new_x, new_y;
+ static JT old_u, old_n, old_s, old_i, old_w, old_x, old_y, old_z;
+ JT new_u, new_n, new_s, new_i, new_w, new_x, new_y, new_z;
JT ticks_past; /* avoid div-by-0 by not calling too often :-( */
tmp_w = 0.0;
@@ -229,10 +229,12 @@
new_x = 0;
tmp_y = 0.0;
new_y = 0;
+ tmp_z = 0.0;
+ new_z = 0;
FILE_TO_BUF(STAT_FILE,stat_fd);
- sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", &new_u, &new_n, &new_s, &new_i, &new_w, &new_x, &new_y);
- ticks_past = (new_u+new_n+new_s+new_i+new_w+new_x+new_y)-(old_u+old_n+old_s+old_i+old_w+old_x+old_y);
+ sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", &new_u, &new_n, &new_s, &new_i, &new_w, &new_x, &new_y, &new_z);
+ ticks_past = (new_u+new_n+new_s+new_i+new_w+new_x+new_y+new_z)-(old_u+old_n+old_s+old_i+old_w+old_x+old_y+old_z);
if(ticks_past){
scale = 100.0 / (double)ticks_past;
tmp_u = ( (double)new_u - (double)old_u ) * scale;
@@ -242,6 +244,7 @@
tmp_w = ( (double)new_w - (double)old_w ) * scale;
tmp_x = ( (double)new_x - (double)old_x ) * scale;
tmp_y = ( (double)new_y - (double)old_y ) * scale;
+ tmp_z = ( (double)new_z - (double)old_z ) * scale;
}else{
tmp_u = NAN;
tmp_n = NAN;
@@ -250,6 +253,7 @@
tmp_w = NAN;
tmp_x = NAN;
tmp_y = NAN;
+ tmp_z = NAN;
}
SET_IF_DESIRED(uret, tmp_u);
SET_IF_DESIRED(nret, tmp_n);
@@ -258,6 +262,7 @@
SET_IF_DESIRED(wret, tmp_w);
SET_IF_DESIRED(iret, tmp_x);
SET_IF_DESIRED(wret, tmp_y);
+ SET_IF_DESIRED(wret, tmp_z);
old_u=new_u;
old_n=new_n;
old_s=new_s;
@@ -265,6 +270,7 @@
old_w=new_w;
old_i=new_x;
old_w=new_y;
+ old_z=new_z;
}
#undef JT
#endif
@@ -341,7 +347,7 @@
/***********************************************************************/
-void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow, jiff *restrict cxxx, jiff *restrict cyyy,
+void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow, jiff *restrict cxxx, jiff *restrict cyyy, jiff *restrict czzz,
unsigned long *restrict pin, unsigned long *restrict pout, unsigned long *restrict s_in, unsigned long *restrict sout,
unsigned *restrict intr, unsigned *restrict ctxt,
unsigned int *restrict running, unsigned int *restrict blocked,
@@ -363,9 +369,10 @@
*ciow = 0; /* not separated out until the 2.5.41 kernel */
*cxxx = 0; /* not separated out until the 2.6.0-test4 kernel */
*cyyy = 0; /* not separated out until the 2.6.0-test4 kernel */
+ *czzz = 0; /* not separated out until the 2.6.x??? kernel */
b = strstr(buff, "cpu ");
- if(b) sscanf(b, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", cuse, cice, csys, cide, ciow, cxxx, cyyy);
+ if(b) sscanf(b, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", cuse, cice, csys, cide, ciow, cxxx, cyyy, czzz);
b = strstr(buff, "page ");
if(b) sscanf(b, "page %lu %lu", pin, pout);
diff -urN procps-3.2.0/proc/sysinfo.h procps-3.2.0-steal/proc/sysinfo.h
--- procps-3.2.0/proc/sysinfo.h 2004-07-16 09:52:29.000000000 +0200
+++ procps-3.2.0-steal/proc/sysinfo.h 2004-07-16 09:51:44.000000000 +0200
@@ -55,7 +55,7 @@
#define BUFFSIZE 8192
typedef unsigned long long jiff;
-extern void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow, jiff *restrict cxxx, jiff *restrict cyyy,
+extern void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow, jiff *restrict cxxx, jiff *restrict cyyy, jiff *restrict czzz,
unsigned long *restrict pin, unsigned long *restrict pout, unsigned long *restrict s_in, unsigned long *restrict sout,
unsigned *restrict intr, unsigned *restrict ctxt,
unsigned int *restrict running, unsigned int *restrict blocked,
diff -urN procps-3.2.0/top.c procps-3.2.0-steal/top.c
--- procps-3.2.0/top.c 2004-07-16 09:52:29.000000000 +0200
+++ procps-3.2.0-steal/top.c 2004-07-16 09:51:44.000000000 +0200
@@ -904,8 +904,9 @@
if (!fgets(buf, sizeof(buf), fp)) std_err("failed /proc/stat read");
cpus[Cpu_tot].x = 0; // FIXME: can't tell by kernel version number
cpus[Cpu_tot].y = 0; // FIXME: can't tell by kernel version number
+ cpus[Cpu_tot].z = 0; // FIXME: can't tell by kernel version number
if (4 > sscanf(buf, CPU_FMTS_JUST1
- , &cpus[Cpu_tot].u, &cpus[Cpu_tot].n, &cpus[Cpu_tot].s, &cpus[Cpu_tot].i, &cpus[Cpu_tot].w, &cpus[Cpu_tot].x, &cpus[Cpu_tot].y))
+ , &cpus[Cpu_tot].u, &cpus[Cpu_tot].n, &cpus[Cpu_tot].s, &cpus[Cpu_tot].i, &cpus[Cpu_tot].w, &cpus[Cpu_tot].x, &cpus[Cpu_tot].y, &cpus[Cpu_tot].z))
std_err("failed /proc/stat read");
// and just in case we're 2.2.xx compiled without SMP support...
if (1 == Cpu_tot) memcpy(cpus, &cpus[1], sizeof(CPU_t));
@@ -918,8 +919,9 @@
if (!fgets(buf, sizeof(buf), fp)) std_err("failed /proc/stat read");
cpus[i].x = 0; // FIXME: can't tell by kernel version number
cpus[i].y = 0; // FIXME: can't tell by kernel version number
+ cpus[i].z = 0; // FIXME: can't tell by kernel version number
if (4 > sscanf(buf, CPU_FMTS_MULTI
- , &cpus[i].u, &cpus[i].n, &cpus[i].s, &cpus[i].i, &cpus[i].w, &cpus[i].x, &cpus[i].y))
+ , &cpus[i].u, &cpus[i].n, &cpus[i].s, &cpus[i].i, &cpus[i].w, &cpus[i].x, &cpus[i].y, &cpus[i].z))
std_err("failed /proc/stat read");
}
return cpus;
@@ -1587,6 +1589,8 @@
States_fmts = STATES_line2x5;
if (linux_version_code >= LINUX_VERSION(2, 6, 0)) // grrr... only some 2.6.0-testX :-(
States_fmts = STATES_line2x6;
+ if (linux_version_code >= LINUX_VERSION(2, 6, 7))
+ States_fmts = STATES_line2x7;
/* get virtual page size -- nearing huge! */
Page_size = getpagesize();
@@ -2809,7 +2813,7 @@
/* we'll trim to zero if we get negative time ticks,
which has happened with some SMP kernels (pre-2.4?) */
#define TRIMz(x) ((tz = (SIC_t)(x)) < 0 ? 0 : tz)
- SIC_t u_frme, s_frme, n_frme, i_frme, w_frme, x_frme, y_frme, tot_frme, tz;
+ SIC_t u_frme, s_frme, n_frme, i_frme, w_frme, x_frme, y_frme, z_frme, tot_frme, tz;
float scale;
u_frme = cpu->u - cpu->u_sav;
@@ -2819,7 +2823,8 @@
w_frme = cpu->w - cpu->w_sav;
x_frme = cpu->x - cpu->x_sav;
y_frme = cpu->y - cpu->y_sav;
- tot_frme = u_frme + s_frme + n_frme + i_frme + w_frme + x_frme + y_frme;
+ z_frme = cpu->z - cpu->z_sav;
+ tot_frme = u_frme + s_frme + n_frme + i_frme + w_frme + x_frme + y_frme + z_frme;
if (1 > tot_frme) tot_frme = 1;
scale = 100.0 / (float)tot_frme;
@@ -2834,6 +2839,7 @@
, (float)w_frme * scale
, (float)x_frme * scale
, (float)y_frme * scale
+ , (float)z_frme * scale
));
Msg_row += 1;
@@ -2845,6 +2851,7 @@
cpu->w_sav = cpu->w;
cpu->x_sav = cpu->x;
cpu->y_sav = cpu->y;
+ cpu->z_sav = cpu->z;
#undef TRIMz
}
diff -urN procps-3.2.0/top.h procps-3.2.0-steal/top.h
--- procps-3.2.0/top.h 2004-07-16 09:52:29.000000000 +0200
+++ procps-3.2.0-steal/top.h 2004-07-16 09:51:44.000000000 +0200
@@ -195,8 +195,8 @@
calculations. It exists primarily for SMP support but serves
all environments. */
typedef struct CPU_t {
- TIC_t u, n, s, i, w, x, y; // as represented in /proc/stat
- TIC_t u_sav, s_sav, n_sav, i_sav, w_sav, x_sav, y_sav; // in the order of our display
+ TIC_t u, n, s, i, w, x, y, z; // as represented in /proc/stat
+ TIC_t u_sav, s_sav, n_sav, i_sav, w_sav, x_sav, y_sav, z_sav; // in the order of our display
} CPU_t;
/* These 2 types support rcfile compatibility */
@@ -357,11 +357,11 @@
/* These are the possible fscanf formats used in /proc/stat
reads during history processing.
( 5th number only for Linux 2.5.41 and above ) */
-#define CPU_FMTS_JUST1 "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu"
+#define CPU_FMTS_JUST1 "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu"
#ifdef PRETEND4CPUS
#define CPU_FMTS_MULTI CPU_FMTS_JUST1
#else
-#define CPU_FMTS_MULTI "cpu%*d %Lu %Lu %Lu %Lu %Lu %Lu %Lu"
+#define CPU_FMTS_MULTI "cpu%*d %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu"
#endif
/* Summary Lines specially formatted string(s) --
@@ -376,6 +376,8 @@
" %#5.1f%% \02user,\03 %#5.1f%% \02system,\03 %#5.1f%% \02nice,\03 %#5.1f%% \02idle,\03 %#5.1f%% \02IO-wait\03\n"
#define STATES_line2x6 "%s\03" \
" %#4.1f%% \02us,\03 %#4.1f%% \02sy,\03 %#4.1f%% \02ni,\03 %#4.1f%% \02id,\03 %#4.1f%% \02wa,\03 %#4.1f%% \02hi,\03 %#4.1f%% \02si\03\n"
+#define STATES_line2x7 "%s\03" \
+ "%#5.1f%%\02us,\03%#5.1f%%\02sy,\03%#5.1f%%\02ni,\03%#5.1f%%\02id,\03%#5.1f%%\02wa,\03%#5.1f%%\02hi,\03%#5.1f%%\02si,\03%#5.1f%%\02st\03\n"
#ifdef CASEUP_SUMMK
#define MEMORY_line1 "Mem: \03" \
" %8uK \02total,\03 %8uK \02used,\03 %8uK \02free,\03 %8uK \02buffers\03\n"
diff -urN procps-3.2.0/vmstat.c procps-3.2.0-steal/vmstat.c
--- procps-3.2.0/vmstat.c 2004-07-16 09:52:29.000000000 +0200
+++ procps-3.2.0-steal/vmstat.c 2004-07-16 10:37:11.486408880 +0200
@@ -149,15 +149,15 @@
////////////////////////////////////////////////////////////////////////////
static void new_header(void){
- printf("procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----\n");
+ printf("procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------\n");
printf(
- "%2s %2s %6s %6s %6s %6s %4s %4s %5s %5s %4s %5s %2s %2s %2s %2s\n",
+ "%2s %2s %6s %6s %6s %6s %4s %4s %5s %5s %4s %4s %2s %2s %2s %2s %2s\n",
"r","b",
"swpd", "free", a_option?"inact":"buff", a_option?"active":"cache",
"si","so",
"bi","bo",
"in","cs",
- "us","sy","id","wa"
+ "us","sy","id","wa", "st"
);
}
@@ -193,13 +193,13 @@
////////////////////////////////////////////////////////////////////////////
static void new_format(void) {
- const char format[]="%2u %2u %6lu %6lu %6lu %6lu %4u %4u %5u %5u %4u %5u %2u %2u %2u %2u\n";
+ const char format[]="%2u %2u %6lu %6lu %6lu %6lu %4u %4u %5u %5u %4u %4u %2u %2u %2u %2u %2u\n";
unsigned int tog=0; /* toggle switch for cleaner code */
unsigned int i;
unsigned int hz = Hertz;
unsigned int running,blocked,dummy_1,dummy_2;
- jiff cpu_use[2], cpu_nic[2], cpu_sys[2], cpu_idl[2], cpu_iow[2], cpu_xxx[2], cpu_yyy[2];
- jiff duse, dsys, didl, diow, Div, divo2;
+ jiff cpu_use[2], cpu_nic[2], cpu_sys[2], cpu_idl[2], cpu_iow[2], cpu_xxx[2], cpu_yyy[2], cpu_zzz[2];
+ jiff duse, dsys, didl, diow, dstl, Div, divo2;
unsigned long pgpgin[2], pgpgout[2], pswpin[2], pswpout[2];
unsigned int intr[2], ctxt[2];
unsigned int sleep_half;
@@ -210,7 +210,7 @@
new_header();
meminfo();
- getstat(cpu_use,cpu_nic,cpu_sys,cpu_idl,cpu_iow,cpu_xxx,cpu_yyy,
+ getstat(cpu_use,cpu_nic,cpu_sys,cpu_idl,cpu_iow,cpu_xxx,cpu_yyy,cpu_zzz,
pgpgin,pgpgout,pswpin,pswpout,
intr,ctxt,
&running,&blocked,
@@ -220,7 +220,8 @@
dsys= *cpu_sys + *cpu_xxx + *cpu_yyy;
didl= *cpu_idl;
diow= *cpu_iow;
- Div= duse+dsys+didl+diow;
+ dstl= *cpu_zzz;
+ Div= duse+dsys+didl+diow+dstl;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -236,7 +237,8 @@
(unsigned)( (100*duse + divo2) / Div ),
(unsigned)( (100*dsys + divo2) / Div ),
(unsigned)( (100*didl + divo2) / Div ),
- (unsigned)( (100*diow + divo2) / Div )
+ (unsigned)( (100*diow + divo2) / Div ),
+ (unsigned)( (100*dstl + divo2) / Div )
);
for(i=1;i<num_updates;i++) { /* \\\\\\\\\\\\\\\\\\\\ main loop ////////////////// */
@@ -246,7 +248,7 @@
meminfo();
- getstat(cpu_use+tog,cpu_nic+tog,cpu_sys+tog,cpu_idl+tog,cpu_iow+tog,cpu_xxx+tog,cpu_yyy+tog,
+ getstat(cpu_use+tog,cpu_nic+tog,cpu_sys+tog,cpu_idl+tog,cpu_iow+tog,cpu_xxx+tog,cpu_yyy+tog,cpu_zzz+tog,
pgpgin+tog,pgpgout+tog,pswpin+tog,pswpout+tog,
intr+tog,ctxt+tog,
&running,&blocked,
@@ -256,6 +258,7 @@
dsys= cpu_sys[tog]-cpu_sys[!tog] + cpu_xxx[tog]-cpu_xxx[!tog] + cpu_yyy[tog]-cpu_yyy[!tog];
didl= cpu_idl[tog]-cpu_idl[!tog];
diow= cpu_iow[tog]-cpu_iow[!tog];
+ dstl= cpu_zzz[tog]-cpu_zzz[!tog];
/* idle can run backwards for a moment -- kernel "feature" */
if(debt){
@@ -267,7 +270,7 @@
didl = 0;
}
- Div= duse+dsys+didl+diow;
+ Div= duse+dsys+didl+diow+dstl;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -283,7 +286,8 @@
(unsigned)( (100*duse+divo2)/Div ), /*us*/
(unsigned)( (100*dsys+divo2)/Div ), /*sy*/
(unsigned)( (100*didl+divo2)/Div ), /*id*/
- (unsigned)( (100*diow+divo2)/Div ) /*wa*/
+ (unsigned)( (100*diow+divo2)/Div ), /*wa*/
+ (unsigned)( (100*dstl+divo2)/Div ) /*st*/
);
}
}
@@ -490,13 +494,14 @@
static void sum_format(void) {
unsigned int running, blocked, btime, processes;
- jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow, cpu_xxx, cpu_yyy;
+ jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow, cpu_xxx, cpu_yyy, cpu_zzz;
unsigned long pgpgin, pgpgout, pswpin, pswpout;
unsigned int intr, ctxt;
meminfo();
- getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl, &cpu_iow, &cpu_xxx, &cpu_yyy,
+ getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl,
+ &cpu_iow, &cpu_xxx, &cpu_yyy, &cpu_zzz,
&pgpgin, &pgpgout, &pswpin, &pswpout,
&intr, &ctxt,
&running, &blocked,
@@ -519,6 +524,7 @@
printf("%13Lu IO-wait cpu ticks\n", cpu_iow);
printf("%13Lu IRQ cpu ticks\n", cpu_xxx);
printf("%13Lu softirq cpu ticks\n", cpu_yyy);
+ printf("%13Lu steal cpu ticks\n", cpu_zzz);
printf("%13lu pages paged in\n", pgpgin);
printf("%13lu pages paged out\n", pgpgout);
printf("%13lu pages swapped in\n", pswpin);
@@ -533,11 +539,12 @@
static void fork_format(void) {
unsigned int running, blocked, btime, processes;
- jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow, cpu_xxx, cpu_yyy;
+ jiff cpu_use, cpu_nic, cpu_sys, cpu_idl, cpu_iow, cpu_xxx, cpu_yyy, cpu_zzz;
unsigned long pgpgin, pgpgout, pswpin, pswpout;
unsigned int intr, ctxt;
- getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl, &cpu_iow, &cpu_xxx, &cpu_yyy,
+ getstat(&cpu_use, &cpu_nic, &cpu_sys, &cpu_idl,
+ &cpu_iow, &cpu_xxx, &cpu_yyy, &cpu_zzz,
&pgpgin, &pgpgout, &pswpin, &pswpout,
&intr, &ctxt,
&running, &blocked,
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] timer (6/6): add cpu steal time fields to procps.
2004-08-05 18:05 [PATCH] timer (6/6): add cpu steal time fields to procps Martin Schwidefsky
@ 2004-08-18 13:18 ` Pavel Machek
0 siblings, 0 replies; 2+ messages in thread
From: Pavel Machek @ 2004-08-18 13:18 UTC (permalink / raw)
To: Martin Schwidefsky
Cc: linux-kernel, linux-390, arjanv, tim.bird, mulix, alan, crisw,
jan.glauber
Hi!
> [PATCH] timer (6/6): add cpu steal time fields to procps.
>
> From: Martin Schwidefsky <schwidefsky@de.ibm.com>
>
> Make use of the cpu steal time field in /proc/stat that has been
> introduces by the cputime patch. The new output of top looks like
> this:
>
> top - 09:50:20 up 11 min, 3 users, load average: 8.94, 7.17, 3.82
> Tasks: 78 total, 8 running, 70 sleeping, 0 stopped, 0 zombie
> Cpu0 : 38.7%us, 4.2%sy, 0.0%ni, 0.0%id, 2.4%wa, 1.8%hi, 0.0%si, 53.0%st
> Cpu1 : 38.5%us, 0.6%sy, 0.0%ni, 5.1%id, 1.3%wa, 1.9%hi, 0.0%si, 52.6%st
> Cpu2 : 54.0%us, 0.6%sy, 0.0%ni, 0.6%id, 4.9%wa, 1.2%hi, 0.0%si, 38.7%st
> Cpu3 : 49.1%us, 0.6%sy, 0.0%ni, 1.2%id, 0.0%wa, 0.0%hi, 0.0%si, 49.1%st
> Cpu4 : 35.9%us, 1.2%sy, 0.0%ni, 15.0%id, 0.6%wa, 1.8%hi, 0.0%si, 45.5%s
> Cpu5 : 43.0%us, 2.1%sy, 0.7%ni, 0.0%id, 4.2%wa, 1.4%hi, 0.0%si, 48.6%st
> Mem: 251832k total, 155448k used, 96384k free, 1212k buffers
> Swap: 524248k total, 17716k used, 506532k free, 18096k cached
You really need to write nice description into Documentation describing what cpu steal
time is. Will it be always 0 on non-virtualized machines?
What about hyperthreading?
--
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms
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2004-08-05 18:05 [PATCH] timer (6/6): add cpu steal time fields to procps Martin Schwidefsky
2004-08-18 13:18 ` Pavel Machek
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