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top: show CPU time stolen from a virtual machine

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This commit is contained in:
albert 2006-06-25 02:15:36 +00:00
parent 1e73c7b8bc
commit 9278134e49
7 changed files with 65 additions and 39 deletions
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1
NEWS
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@ -13,6 +13,7 @@ w: stale utmp entries snuck in via uninitialized var -- thanks Robert A Basch
pgrep/pkill: fix some realloc-related crashes #353894
pgrep/pkill: g is criteria (PLD Linux, patch found in locked filing cabinet)
sysctl: use - for stdin (PLD Linux: beware of the leopard)
top: show CPU time stolen from a virtual machine
procps-3.2.5 --> procps-3.2.6

31
proc/sysinfo.c
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@ -238,11 +238,11 @@ static void init_libproc(void){
#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 eight_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;
@ -251,10 +251,12 @@ void seven_cpu_numbers(double *restrict uret, double *restrict nret, double *res
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;
@ -264,6 +266,7 @@ void seven_cpu_numbers(double *restrict uret, double *restrict nret, double *res
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;
@ -272,21 +275,24 @@ void seven_cpu_numbers(double *restrict uret, double *restrict nret, double *res
tmp_w = NAN;
tmp_x = NAN;
tmp_y = NAN;
tmp_z = NAN;
}
SET_IF_DESIRED(uret, tmp_u);
SET_IF_DESIRED(nret, tmp_n);
SET_IF_DESIRED(sret, tmp_s);
SET_IF_DESIRED(iret, tmp_i);
SET_IF_DESIRED(wret, tmp_w);
SET_IF_DESIRED(iret, tmp_x);
SET_IF_DESIRED(wret, tmp_y);
SET_IF_DESIRED(xret, tmp_x);
SET_IF_DESIRED(yret, tmp_y);
SET_IF_DESIRED(zret, tmp_z);
old_u=new_u;
old_n=new_n;
old_s=new_s;
old_i=new_i;
old_w=new_w;
old_i=new_x;
old_w=new_y;
old_x=new_x;
old_y=new_y;
old_z=new_z;
}
#undef JT
#endif
@ -361,7 +367,7 @@ static void getrunners(unsigned int *restrict running, unsigned int *restrict bl
/***********************************************************************/
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,
@ -384,9 +390,10 @@ void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff
*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 2.6.11 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);

4
proc/sysinfo.h
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@ -12,7 +12,7 @@ extern int have_privs; /* boolean, true if setuid or similar */
#if 0
#define JT double
extern void seven_cpu_numbers(JT *uret, JT *nret, JT *sret, JT *iret, JT *wret, JT *xret, JT *yret);
extern void eight_cpu_numbers(JT *uret, JT *nret, JT *sret, JT *iret, JT *wret, JT *xret, JT *yret, JT *zret);
#undef JT
#endif
@ -56,7 +56,7 @@ extern unsigned long kb_pagetables;
#define BUFFSIZE (64*1024)
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,

22
top.c
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@ -934,14 +934,16 @@ static CPU_t *cpus_refresh (CPU_t *cpus)
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
num = sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu",
cpus[Cpu_tot].z = 0; // FIXME: can't tell by kernel version number
num = sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu",
&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].y,
&cpus[Cpu_tot].z
);
if (num < 4)
std_err("failed /proc/stat read");
@ -957,9 +959,10 @@ static CPU_t *cpus_refresh (CPU_t *cpus)
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
num = sscanf(buf, "cpu%u %Lu %Lu %Lu %Lu %Lu %Lu %Lu",
cpus[i].z = 0; // FIXME: can't tell by kernel version number
num = sscanf(buf, "cpu%u %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu",
&cpus[i].id,
&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
);
if (num < 4)
std_err("failed /proc/stat read");
@ -1601,6 +1604,8 @@ static void before (char *me)
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, 11))
States_fmts = STATES_line2x7;
/* get virtual page size -- nearing huge! */
Page_size = getpagesize();
@ -2874,7 +2879,7 @@ static void summaryhlp (CPU_t *cpu, const char *pfx)
// 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;
@ -2884,7 +2889,8 @@ static void summaryhlp (CPU_t *cpu, const char *pfx)
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 (tot_frme < 1) tot_frme = 1;
scale = 100.0 / (float)tot_frme;
@ -2901,7 +2907,8 @@ static void summaryhlp (CPU_t *cpu, const char *pfx)
(float)i_frme * scale,
(float)w_frme * scale,
(float)x_frme * scale,
(float)y_frme * scale
(float)y_frme * scale,
(float)z_frme * scale
)
);
Msg_row += 1;
@ -2914,6 +2921,7 @@ static void summaryhlp (CPU_t *cpu, const char *pfx)
cpu->w_sav = cpu->w;
cpu->x_sav = cpu->x;
cpu->y_sav = cpu->y;
cpu->z_sav = cpu->z;
#undef TRIMz
}

6
top.h
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@ -211,8 +211,8 @@ typedef struct HST_t {
// 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
unsigned id; // the CPU ID number
} CPU_t;
@ -389,6 +389,8 @@ typedef struct WIN_t {
" %#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" \
" %8luK \02total,\03 %8luK \02used,\03 %8luK \02free,\03 %8luK \02buffers\03\n"

3
vmstat.8
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@ -113,7 +113,8 @@ These are percentages of total CPU time.
us: Time spent running non-kernel code. (user time, including nice time)
sy: Time spent running kernel code. (system time)
id: Time spent idle. Prior to Linux 2.5.41, this includes IO-wait time.
wa: Time spent waiting for IO. Prior to Linux 2.5.41, shown as zero.
wa: Time spent waiting for IO. Prior to Linux 2.5.41, included in idle.
st: Time stolen from a virtual machine. Prior to Linux 2.6.11, unknown.
.PP
.SH FIELD DESCRIPTION FOR DISK MODE

37
vmstat.c
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@ -150,9 +150,9 @@ static int format_1000(unsigned long long val64, char *restrict dst){
////////////////////////////////////////////////////////////////////////////
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\n",
"r","b",
"swpd", "free", a_option?"inact":"buff", a_option?"active":"cache",
"si","so",
@ -173,13 +173,13 @@ static unsigned long unitConvert(unsigned int size){
////////////////////////////////////////////////////////////////////////////
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\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;
@ -190,7 +190,7 @@ static void new_format(void) {
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,
@ -200,7 +200,8 @@ static void new_format(void) {
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,
@ -216,7 +217,8 @@ static void new_format(void) {
(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 ////////////////// */
@ -226,7 +228,7 @@ static void new_format(void) {
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,
@ -236,6 +238,7 @@ static void new_format(void) {
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){
@ -247,7 +250,7 @@ static void new_format(void) {
didl = 0;
}
Div= duse+dsys+didl+diow;
Div= duse+dsys+didl+diow+dstl;
divo2= Div/2UL;
printf(format,
running, blocked,
@ -263,7 +266,8 @@ static void new_format(void) {
(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 */
);
}
}
@ -504,13 +508,14 @@ static void disksum_format(void) {
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,
@ -533,6 +538,7 @@ static void sum_format(void) {
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 stolen 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);
@ -547,11 +553,12 @@ static void sum_format(void) {
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,