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pr_stats.c
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pr_stats.c
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/*
* pr_stats.c: Functions used by sar to display statistics
* (C) 1999-2018 by Sebastien GODARD (sysstat <at> orange.fr)
*
***************************************************************************
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA *
***************************************************************************
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include "sa.h"
#include "ioconf.h"
#include "pr_stats.h"
#ifdef USE_NLS
#include <locale.h>
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif
extern unsigned int flags;
extern int dis;
extern char timestamp[][TIMESTAMP_LEN];
extern unsigned long avg_count;
/*
***************************************************************************
* Display current activity header line.
*
* IN:
* @timestamp Timestamp for previous stat sample.
* @a Activity structure.
* @pos Index in @.hdr_line string, 0 being the first one (header
* are delimited by the '|' character).
* @iwidth First column width (generally this is the item name). A
* negative value means that the corresponding field shall be
* displayed at the end of the line, with no indication of width.
* @vwidth Column width for stats values.
***************************************************************************
*/
void print_hdr_line(char *timestamp, struct activity *a, int pos, int iwidth, int vwidth)
{
char hline[HEADER_LINE_LEN] = "";
char *hl, *tk, *it = NULL;
int i = -1, j;
int p = pos;
strncpy(hline, a->hdr_line, HEADER_LINE_LEN - 1);
hline[HEADER_LINE_LEN - 1] = '\0';
for (hl = strtok(hline, "|"); hl && (pos > 0); hl = strtok(NULL, "|"), pos--);
if (!hl)
/* Bad @pos arg given to function */
return;
printf("\n%-11s", timestamp);
if (strchr(hl, '&')) {
j = strcspn(hl, "&");
if ((a->opt_flags & 0xff00) & (1 << (8 + p))) {
/* Display whole header line */
*(hl + j) = ';';
}
else {
/* Display only the first part of the header line */
*(hl + j) = '\0';
}
}
/* Display each field */
for (tk = strtok(hl, ";"); tk; tk = strtok(NULL, ";"), i--) {
if (iwidth > 0) {
printf(" %*s", iwidth, tk);
iwidth = 0;
continue;
}
if ((iwidth < 0) && (iwidth == i)) {
it = tk;
iwidth = 0;
}
else {
printf(" %*s", vwidth, tk);
}
}
if (it) {
printf(" %s", it);
}
printf("\n");
}
/*
***************************************************************************
* Display CPU statistics.
* NB: The stats are only calculated over the part of the time interval when
* the CPU was online. As a consequence, the sum (%user + %nice + ... + %idle)
* will always be 100% on the time interval even if the CPU has been offline
* most of the time.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second (independent of the
* number of processors). Unused here.
***************************************************************************
*/
__print_funct_t print_cpu_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
int i;
unsigned long long deltot_jiffies = 1;
struct stats_cpu *scc, *scp;
unsigned char offline_cpu_bitmap[BITMAP_SIZE(NR_CPUS)] = {0};
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST + DISPLAY_CPU_ALL(a->opt_flags), 7, 9);
}
/*
* @nr[curr] cannot normally be greater than @nr_ini
* (since @nr_ini counts up all CPU, even those offline).
* If this happens, it may be because the machine has been
* restarted with more CPU and no LINUX_RESTART has been
* inserted in file.
* No problem here with @nr_allocated. Having been able to
* read @nr[curr] structures shows that buffers are large enough.
*/
if (a->nr[curr] > a->nr_ini) {
a->nr_ini = a->nr[curr];
}
/*
* Compute CPU "all" as sum of all individual CPU (on SMP machines)
* and look for offline CPU.
*/
if (a->nr_ini > 1) {
deltot_jiffies = get_global_cpu_statistics(a, prev, curr,
flags, offline_cpu_bitmap);
}
/*
* Now display CPU statistics (including CPU "all"),
* except for offline CPU or CPU that the user doesn't want to see.
*/
for (i = 0; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {
/*
* Should current CPU (including CPU "all") be displayed?
* Note: @nr[curr] is in [1, NR_CPUS + 1].
* Bitmap size is provided for (NR_CPUS + 1) CPUs.
* Anyway, NR_CPUS may vary between the version of sysstat
* used by sadc to create a file, and the version of sysstat
* used by sar to read it...
*/
if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))) ||
offline_cpu_bitmap[i >> 3] & (1 << (i & 0x07)))
/* Don't display CPU */
continue;
scc = (struct stats_cpu *) ((char *) a->buf[curr] + i * a->msize);
scp = (struct stats_cpu *) ((char *) a->buf[prev] + i * a->msize);
printf("%-11s", timestamp[curr]);
if (i == 0) {
/* This is CPU "all" */
cprintf_in(IS_STR, " %s", " all", 0);
if (a->nr_ini == 1) {
/*
* This is a UP machine. In this case
* interval has still not been calculated.
*/
deltot_jiffies = get_per_cpu_interval(scc, scp);
}
if (!deltot_jiffies) {
/* CPU "all" cannot be tickless */
deltot_jiffies = 1;
}
}
else {
cprintf_in(IS_INT, " %7d", "", i - 1);
/* Recalculate interval for current proc */
deltot_jiffies = get_per_cpu_interval(scc, scp);
if (!deltot_jiffies) {
/*
* If the CPU is tickless then there is no change in CPU values
* but the sum of values is not zero.
* %user, %nice, %system, %iowait, %steal, ..., %idle
*/
cprintf_pc(DISPLAY_UNIT(flags), 5, 9, 2,
0.0, 0.0, 0.0, 0.0, 0.0);
if (DISPLAY_CPU_DEF(a->opt_flags)) {
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2, 100.0);
printf("\n");
}
/*
* Four additional fields to display:
* %irq, %soft, %guest, %gnice.
*/
else if (DISPLAY_CPU_ALL(a->opt_flags)) {
cprintf_pc(DISPLAY_UNIT(flags), 4, 9, 2,
0.0, 0.0, 0.0, 100.0);
printf("\n");
}
continue;
}
}
if (DISPLAY_CPU_DEF(a->opt_flags)) {
cprintf_pc(DISPLAY_UNIT(flags), 6, 9, 2,
ll_sp_value(scp->cpu_user, scc->cpu_user, deltot_jiffies),
ll_sp_value(scp->cpu_nice, scc->cpu_nice, deltot_jiffies),
ll_sp_value(scp->cpu_sys + scp->cpu_hardirq + scp->cpu_softirq,
scc->cpu_sys + scc->cpu_hardirq + scc->cpu_softirq,
deltot_jiffies),
ll_sp_value(scp->cpu_iowait, scc->cpu_iowait, deltot_jiffies),
ll_sp_value(scp->cpu_steal, scc->cpu_steal, deltot_jiffies),
scc->cpu_idle < scp->cpu_idle ?
0.0 :
ll_sp_value(scp->cpu_idle, scc->cpu_idle, deltot_jiffies));
printf("\n");
}
else if (DISPLAY_CPU_ALL(a->opt_flags)) {
cprintf_pc(DISPLAY_UNIT(flags), 10, 9, 2,
(scc->cpu_user - scc->cpu_guest) < (scp->cpu_user - scp->cpu_guest) ?
0.0 :
ll_sp_value(scp->cpu_user - scp->cpu_guest,
scc->cpu_user - scc->cpu_guest, deltot_jiffies),
(scc->cpu_nice - scc->cpu_guest_nice) < (scp->cpu_nice - scp->cpu_guest_nice) ?
0.0 :
ll_sp_value(scp->cpu_nice - scp->cpu_guest_nice,
scc->cpu_nice - scc->cpu_guest_nice, deltot_jiffies),
ll_sp_value(scp->cpu_sys, scc->cpu_sys, deltot_jiffies),
ll_sp_value(scp->cpu_iowait, scc->cpu_iowait, deltot_jiffies),
ll_sp_value(scp->cpu_steal, scc->cpu_steal, deltot_jiffies),
ll_sp_value(scp->cpu_hardirq, scc->cpu_hardirq, deltot_jiffies),
ll_sp_value(scp->cpu_softirq, scc->cpu_softirq, deltot_jiffies),
ll_sp_value(scp->cpu_guest, scc->cpu_guest, deltot_jiffies),
ll_sp_value(scp->cpu_guest_nice, scc->cpu_guest_nice, deltot_jiffies),
scc->cpu_idle < scp->cpu_idle ?
0.0 :
ll_sp_value(scp->cpu_idle, scc->cpu_idle, deltot_jiffies));
printf("\n");
}
}
}
/*
***************************************************************************
* Display tasks creation and context switches statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_pcsw_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
struct stats_pcsw
*spc = (struct stats_pcsw *) a->buf[curr],
*spp = (struct stats_pcsw *) a->buf[prev];
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
printf("%-11s", timestamp[curr]);
cprintf_f(NO_UNIT, 2, 9, 2,
S_VALUE(spp->processes, spc->processes, itv),
S_VALUE(spp->context_switch, spc->context_switch, itv));
printf("\n");
}
/*
***************************************************************************
* Display interrupts statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_irq_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
int i;
struct stats_irq *sic, *sip;
if (dis || DISPLAY_ZERO_OMIT(flags)) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {
/*
* If @nr[curr] > @nr[prev] then we consider that previous
* interrupt value was 0.
*/
sic = (struct stats_irq *) ((char *) a->buf[curr] + i * a->msize);
sip = (struct stats_irq *) ((char *) a->buf[prev] + i * a->msize);
/*
* Note: @nr[curr] gives the number of interrupts read (1 .. NR_IRQS + 1).
* Bitmap size is provided for (NR_IRQS + 1) interrupts.
* Anyway, NR_IRQS may vary between the version of sysstat
* used by sadc to create a file, and the version of sysstat
* used by sar to read it...
*/
/* Should current interrupt (including int "sum") be displayed? */
if (a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))) {
if (DISPLAY_ZERO_OMIT(flags) && !memcmp(sip, sic, STATS_IRQ_SIZE))
continue;
/* Yes: Display it */
printf("%-11s", timestamp[curr]);
if (!i) {
/* This is interrupt "sum" */
cprintf_in(IS_STR, " %s", " sum", 0);
}
else {
cprintf_in(IS_INT, " %9d", "", i -1);
}
cprintf_f(NO_UNIT, 1, 9, 2, S_VALUE(sip->irq_nr, sic->irq_nr, itv));
printf("\n");
}
}
}
/*
***************************************************************************
* Display swapping statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_swap_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
struct stats_swap
*ssc = (struct stats_swap *) a->buf[curr],
*ssp = (struct stats_swap *) a->buf[prev];
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
printf("%-11s", timestamp[curr]);
cprintf_f(NO_UNIT, 2, 9, 2,
S_VALUE(ssp->pswpin, ssc->pswpin, itv),
S_VALUE(ssp->pswpout, ssc->pswpout, itv));
printf("\n");
}
/*
***************************************************************************
* Display paging statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_paging_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
struct stats_paging
*spc = (struct stats_paging *) a->buf[curr],
*spp = (struct stats_paging *) a->buf[prev];
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
printf("%-11s", timestamp[curr]);
cprintf_f(NO_UNIT, 8, 9, 2,
S_VALUE(spp->pgpgin, spc->pgpgin, itv),
S_VALUE(spp->pgpgout, spc->pgpgout, itv),
S_VALUE(spp->pgfault, spc->pgfault, itv),
S_VALUE(spp->pgmajfault, spc->pgmajfault, itv),
S_VALUE(spp->pgfree, spc->pgfree, itv),
S_VALUE(spp->pgscan_kswapd, spc->pgscan_kswapd, itv),
S_VALUE(spp->pgscan_direct, spc->pgscan_direct, itv),
S_VALUE(spp->pgsteal, spc->pgsteal, itv));
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
(spc->pgscan_kswapd + spc->pgscan_direct -
spp->pgscan_kswapd - spp->pgscan_direct) ?
SP_VALUE(spp->pgsteal, spc->pgsteal,
spc->pgscan_kswapd + spc->pgscan_direct -
spp->pgscan_kswapd - spp->pgscan_direct)
: 0.0);
printf("\n");
}
/*
***************************************************************************
* Display I/O and transfer rate statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_io_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
struct stats_io
*sic = (struct stats_io *) a->buf[curr],
*sip = (struct stats_io *) a->buf[prev];
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
printf("%-11s", timestamp[curr]);
/*
* If we get negative values, this is probably because
* one or more devices/filesystems have been unmounted.
* We display 0.0 in this case though we should rather tell
* the user that the value cannot be calculated here.
*/
cprintf_f(NO_UNIT, 7, 9, 2,
sic->dk_drive < sip->dk_drive ? 0.0 :
S_VALUE(sip->dk_drive, sic->dk_drive, itv),
sic->dk_drive_rio < sip->dk_drive_rio ? 0.0 :
S_VALUE(sip->dk_drive_rio, sic->dk_drive_rio, itv),
sic->dk_drive_wio < sip->dk_drive_wio ? 0.0 :
S_VALUE(sip->dk_drive_wio, sic->dk_drive_wio, itv),
sic->dk_drive_dio < sip->dk_drive_dio ? 0.0 :
S_VALUE(sip->dk_drive_dio, sic->dk_drive_dio, itv),
sic->dk_drive_rblk < sip->dk_drive_rblk ? 0.0 :
S_VALUE(sip->dk_drive_rblk, sic->dk_drive_rblk, itv),
sic->dk_drive_wblk < sip->dk_drive_wblk ? 0.0 :
S_VALUE(sip->dk_drive_wblk, sic->dk_drive_wblk, itv),
sic->dk_drive_dblk < sip->dk_drive_dblk ? 0.0 :
S_VALUE(sip->dk_drive_dblk, sic->dk_drive_dblk, itv));
printf("\n");
}
/*
***************************************************************************
* Display memory and swap statistics. This function is used to
* display instantaneous and average statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @dispavg TRUE if displaying average statistics.
***************************************************************************
*/
void stub_print_memory_stats(struct activity *a, int prev, int curr, int dispavg)
{
struct stats_memory
*smc = (struct stats_memory *) a->buf[curr];
static unsigned long long
avg_frmkb = 0,
avg_bufkb = 0,
avg_camkb = 0,
avg_comkb = 0,
avg_activekb = 0,
avg_inactkb = 0,
avg_dirtykb = 0,
avg_anonpgkb = 0,
avg_slabkb = 0,
avg_kstackkb = 0,
avg_pgtblkb = 0,
avg_vmusedkb = 0,
avg_availablekb = 0;
static unsigned long long
avg_frskb = 0,
avg_tlskb = 0,
avg_caskb = 0;
int unit = NO_UNIT;
unsigned long long nousedmem;
if (DISPLAY_UNIT(flags)) {
/* Default values unit is kB */
unit = UNIT_KILOBYTE;
}
if (DISPLAY_MEMORY(a->opt_flags)) {
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
if (!dispavg) {
/* Display instantaneous values */
nousedmem = smc->frmkb + smc->bufkb + smc->camkb + smc->slabkb;
if (nousedmem > smc->tlmkb) {
nousedmem = smc->tlmkb;
}
printf("%-11s", timestamp[curr]);
cprintf_u64(unit, 3, 9,
(unsigned long long) smc->frmkb,
(unsigned long long) smc->availablekb,
(unsigned long long) (smc->tlmkb - nousedmem));
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
smc->tlmkb ?
SP_VALUE(nousedmem, smc->tlmkb, smc->tlmkb)
: 0.0);
cprintf_u64(unit, 3, 9,
(unsigned long long) smc->bufkb,
(unsigned long long) smc->camkb,
(unsigned long long) smc->comkb);
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
(smc->tlmkb + smc->tlskb) ?
SP_VALUE(0, smc->comkb, smc->tlmkb + smc->tlskb)
: 0.0);
cprintf_u64(unit, 3, 9,
(unsigned long long) smc->activekb,
(unsigned long long) smc->inactkb,
(unsigned long long) smc->dirtykb);
if (DISPLAY_MEM_ALL(a->opt_flags)) {
/* Display extended memory statistics */
cprintf_u64(unit, 5, 9,
(unsigned long long) smc->anonpgkb,
(unsigned long long) smc->slabkb,
(unsigned long long) smc->kstackkb,
(unsigned long long) smc->pgtblkb,
(unsigned long long) smc->vmusedkb);
}
printf("\n");
/*
* Will be used to compute the average.
* We assume that the total amount of memory installed can not vary
* during the interval given on the command line.
*/
avg_frmkb += smc->frmkb;
avg_bufkb += smc->bufkb;
avg_camkb += smc->camkb;
avg_comkb += smc->comkb;
avg_activekb += smc->activekb;
avg_inactkb += smc->inactkb;
avg_dirtykb += smc->dirtykb;
avg_anonpgkb += smc->anonpgkb;
avg_slabkb += smc->slabkb;
avg_kstackkb += smc->kstackkb;
avg_pgtblkb += smc->pgtblkb;
avg_vmusedkb += smc->vmusedkb;
avg_availablekb += smc->availablekb;
}
else {
/* Display average values */
nousedmem = avg_frmkb + avg_bufkb + avg_camkb + avg_slabkb;
printf("%-11s", timestamp[curr]);
cprintf_f(unit, 3, 9, 0,
(double) avg_frmkb / avg_count,
(double) avg_availablekb / avg_count,
(double) smc->tlmkb - ((double) nousedmem / avg_count));
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
smc->tlmkb ?
SP_VALUE((double) (nousedmem / avg_count), smc->tlmkb, smc->tlmkb)
: 0.0);
cprintf_f(unit, 3, 9, 0,
(double) avg_bufkb / avg_count,
(double) avg_camkb / avg_count,
(double) avg_comkb / avg_count);
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
(smc->tlmkb + smc->tlskb) ?
SP_VALUE(0.0, (double) (avg_comkb / avg_count), smc->tlmkb + smc->tlskb)
: 0.0);
cprintf_f(unit, 3, 9, 0,
(double) avg_activekb / avg_count,
(double) avg_inactkb / avg_count,
(double) avg_dirtykb / avg_count);
if (DISPLAY_MEM_ALL(a->opt_flags)) {
cprintf_f(unit, 5, 9, 0,
(double) avg_anonpgkb / avg_count,
(double) avg_slabkb / avg_count,
(double) avg_kstackkb / avg_count,
(double) avg_pgtblkb / avg_count,
(double) avg_vmusedkb / avg_count);
}
printf("\n");
/* Reset average counters */
avg_frmkb = avg_bufkb = avg_camkb = avg_comkb = 0;
avg_activekb = avg_inactkb = avg_dirtykb = 0;
avg_anonpgkb = avg_slabkb = avg_kstackkb = 0;
avg_pgtblkb = avg_vmusedkb = avg_availablekb = 0;
}
}
if (DISPLAY_SWAP(a->opt_flags)) {
if (dis) {
print_hdr_line(timestamp[!curr], a, SECOND, 0, 9);
}
if (!dispavg) {
/* Display instantaneous values */
printf("%-11s", timestamp[curr]);
cprintf_u64(unit, 2, 9,
(unsigned long long) smc->frskb,
(unsigned long long) (smc->tlskb - smc->frskb));
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
smc->tlskb ?
SP_VALUE(smc->frskb, smc->tlskb, smc->tlskb)
: 0.0);
cprintf_u64(unit, 1, 9,
(unsigned long long) smc->caskb);
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
(smc->tlskb - smc->frskb) ?
SP_VALUE(0, smc->caskb, smc->tlskb - smc->frskb)
: 0.0);
printf("\n");
/*
* Will be used to compute the average.
* We assume that the total amount of swap space may vary.
*/
avg_frskb += smc->frskb;
avg_tlskb += smc->tlskb;
avg_caskb += smc->caskb;
}
else {
/* Display average values */
printf("%-11s", timestamp[curr]);
cprintf_f(unit, 2, 9, 0,
(double) avg_frskb / avg_count,
((double) avg_tlskb / avg_count) -
((double) avg_frskb / avg_count));
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
avg_tlskb ?
SP_VALUE((double) avg_frskb / avg_count,
(double) avg_tlskb / avg_count,
(double) avg_tlskb / avg_count)
: 0.0);
cprintf_f(unit, 1, 9, 0,
(double) avg_caskb / avg_count);
cprintf_pc(DISPLAY_UNIT(flags), 1, 9, 2,
(avg_tlskb != avg_frskb) ?
SP_VALUE(0.0, (double) avg_caskb / avg_count,
((double) avg_tlskb / avg_count) -
((double) avg_frskb / avg_count))
: 0.0);
printf("\n");
/* Reset average counters */
avg_frskb = avg_tlskb = avg_caskb = 0;
}
}
}
/*
***************************************************************************
* Display memory and swap statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_memory_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_memory_stats(a, prev, curr, FALSE);
}
/*
***************************************************************************
* Display average memory statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_avg_memory_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_memory_stats(a, prev, curr, TRUE);
}
/*
***************************************************************************
* Display kernel tables statistics. This function is used to display
* instantaneous and average statistics.
*
* IN:
* @a Activity structure with statistics.
* @curr Index in array for current sample statistics.
* @dispavg True if displaying average statistics.
***************************************************************************
*/
void stub_print_ktables_stats(struct activity *a, int curr, int dispavg)
{
struct stats_ktables
*skc = (struct stats_ktables *) a->buf[curr];
static unsigned long long
avg_dentry_stat = 0,
avg_file_used = 0,
avg_inode_used = 0,
avg_pty_nr = 0;
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
if (!dispavg) {
/* Display instantaneous values */
printf("%-11s", timestamp[curr]);
cprintf_u64(NO_UNIT, 4, 9,
(unsigned long long) skc->dentry_stat,
(unsigned long long) skc->file_used,
(unsigned long long) skc->inode_used,
(unsigned long long) skc->pty_nr);
printf("\n");
/*
* Will be used to compute the average.
* Note: Overflow unlikely to happen but not impossible...
*/
avg_dentry_stat += skc->dentry_stat;
avg_file_used += skc->file_used;
avg_inode_used += skc->inode_used;
avg_pty_nr += skc->pty_nr;
}
else {
/* Display average values */
printf("%-11s", timestamp[curr]);
cprintf_f(NO_UNIT, 4, 9, 0,
(double) avg_dentry_stat / avg_count,
(double) avg_file_used / avg_count,
(double) avg_inode_used / avg_count,
(double) avg_pty_nr / avg_count);
printf("\n");
/* Reset average counters */
avg_dentry_stat = avg_file_used = avg_inode_used = avg_pty_nr = 0;
}
}
/*
***************************************************************************
* Display kernel tables statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_ktables_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_ktables_stats(a, curr, FALSE);
}
/*
***************************************************************************
* Display average kernel tables statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_avg_ktables_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_ktables_stats(a, curr, TRUE);
}
/*
***************************************************************************
* Display queue and load statistics. This function is used to display
* instantaneous and average statistics.
*
* IN:
* @a Activity structure with statistics.
* @curr Index in array for current sample statistics.
* @dispavg TRUE if displaying average statistics.
***************************************************************************
*/
void stub_print_queue_stats(struct activity *a, int curr, int dispavg)
{
struct stats_queue
*sqc = (struct stats_queue *) a->buf[curr];
static unsigned long long
avg_nr_running = 0,
avg_nr_threads = 0,
avg_load_avg_1 = 0,
avg_load_avg_5 = 0,
avg_load_avg_15 = 0,
avg_procs_blocked = 0;
if (dis) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
if (!dispavg) {
/* Display instantaneous values */
printf("%-11s", timestamp[curr]);
cprintf_u64(NO_UNIT, 2, 9,
(unsigned long long) sqc->nr_running,
(unsigned long long) sqc->nr_threads);
cprintf_f(NO_UNIT, 3, 9, 2,
(double) sqc->load_avg_1 / 100,
(double) sqc->load_avg_5 / 100,
(double) sqc->load_avg_15 / 100);
cprintf_u64(NO_UNIT, 1, 9,
(unsigned long long) sqc->procs_blocked);
printf("\n");
/* Will be used to compute the average */
avg_nr_running += sqc->nr_running;
avg_nr_threads += sqc->nr_threads;
avg_load_avg_1 += sqc->load_avg_1;
avg_load_avg_5 += sqc->load_avg_5;
avg_load_avg_15 += sqc->load_avg_15;
avg_procs_blocked += sqc->procs_blocked;
}
else {
/* Display average values */
printf("%-11s", timestamp[curr]);
cprintf_f(NO_UNIT, 2, 9, 0,
(double) avg_nr_running / avg_count,
(double) avg_nr_threads / avg_count);
cprintf_f(NO_UNIT, 3, 9, 2,
(double) avg_load_avg_1 / (avg_count * 100),
(double) avg_load_avg_5 / (avg_count * 100),
(double) avg_load_avg_15 / (avg_count * 100));
cprintf_f(NO_UNIT, 1, 9, 0,
(double) avg_procs_blocked / avg_count);
printf("\n");
/* Reset average counters */
avg_nr_running = avg_nr_threads = 0;
avg_load_avg_1 = avg_load_avg_5 = avg_load_avg_15 = 0;
avg_procs_blocked = 0;
}
}
/*
***************************************************************************
* Display queue and load statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_queue_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_queue_stats(a, curr, FALSE);
}
/*
***************************************************************************
* Display average queue and load statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_avg_queue_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
stub_print_queue_stats(a, curr, TRUE);
}
/*
***************************************************************************
* Display serial lines statistics.
*
* IN:
* @a Activity structure with statistics.
* @prev Index in array where stats used as reference are.
* @curr Index in array for current sample statistics.
* @itv Interval of time in 1/100th of a second.
***************************************************************************
*/
__print_funct_t print_serial_stats(struct activity *a, int prev, int curr,
unsigned long long itv)
{
int i, j, j0, found;
struct stats_serial *ssc, *ssp;
if (dis || DISPLAY_ZERO_OMIT(flags)) {
print_hdr_line(timestamp[!curr], a, FIRST, 0, 9);
}
for (i = 0; i < a->nr[curr]; i++) {
ssc = (struct stats_serial *) ((char *) a->buf[curr] + i * a->msize);
if (WANT_SINCE_BOOT(flags)) {
/*
* We want to display statistics since boot time.
* Take the first structure from buf[prev]: This is a
* structure that only contains 0 (it has been set to 0
* when it has been allocated), and which exists since
* there is the same number of allocated structures for
* buf[prev] and bur[curr] (even if nothing has been read).
*/
ssp = (struct stats_serial *) ((char *) a->buf[prev]);
found = TRUE;
}
else {
found = FALSE;
if (a->nr[prev] > 0) {
/* Look for corresponding serial line in previous iteration */
j = i;
if (j >= a->nr[prev]) {
j = a->nr[prev] - 1;
}
j0 = j;
do {
ssp = (struct stats_serial *) ((char *) a->buf[prev] + j * a->msize);
if (ssc->line == ssp->line) {
found = TRUE;
break;
}
if (++j >= a->nr[prev]) {
j = 0;
}
}
while (j != j0);
}
}
if (!found)
continue;
if (DISPLAY_ZERO_OMIT(flags) && !memcmp(ssp, ssc, STATS_SERIAL_SIZE))
continue;
printf("%-11s", timestamp[curr]);
cprintf_in(IS_INT, " %3d", "", ssc->line);
cprintf_f(NO_UNIT, 6, 9, 2,
S_VALUE(ssp->rx, ssc->rx, itv),
S_VALUE(ssp->tx, ssc->tx, itv),
S_VALUE(ssp->frame, ssc->frame, itv),
S_VALUE(ssp->parity, ssc->parity, itv),
S_VALUE(ssp->brk, ssc->brk, itv),
S_VALUE(ssp->overrun, ssc->overrun, itv));
printf("\n");
}
}