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Tell what percentage of the total IO a process is doing.

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TODO: Show system totals.
This commit is contained in:
Alfred Perlstein 2004-07-01 15:49:28 +00:00
parent 9ecdd506ea
commit 7fe9a86a5a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=131412
1 changed files with 37 additions and 5 deletions
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42
usr.bin/top/machine.c
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@ -101,10 +101,10 @@ struct handle
*/
static char io_header[] =
" PID %-*.*s READ WRITE FAULT TOTAL COMMAND";
" PID %-*.*s READ WRITE FAULT TOTAL PERCENT COMMAND";
#define io_Proc_format \
"%5d %-*.*s %6d %6d %6d %6d %.*s"
"%5d %-*.*s %6d %6d %6d %6d %6.2f%% %.*s"
static char smp_header[] =
" PID %-*.*s PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND";
@ -194,6 +194,11 @@ static struct kinfo_proc **previous_pref;
static int previous_proc_count = 0;
static int previous_proc_count_max = 0;
/* total number of io operations */
static long total_inblock;
static long total_oublock;
static long total_majflt;
/* these are for getting the memory statistics */
static int pageshift; /* log base 2 of the pagesize */
@ -432,7 +437,9 @@ get_old_proc(struct kinfo_proc *pp)
}
long
get_io_total(struct kinfo_proc *pp)
get_io_stats(pp, inp, oup, flp)
struct kinfo_proc *pp;
long *inp, *oup, *flp;
{
const struct kinfo_proc *oldp;
static struct kinfo_proc dummy;
@ -444,6 +451,9 @@ get_io_total(struct kinfo_proc *pp)
oldp = &dummy;
}
*inp = RU(pp)->ru_inblock - RU(oldp)->ru_inblock;
*oup = RU(pp)->ru_oublock - RU(oldp)->ru_oublock;
*flp = RU(pp)->ru_majflt - RU(oldp)->ru_majflt;
ret =
(RU(pp)->ru_inblock - RU(oldp)->ru_inblock) +
(RU(pp)->ru_oublock - RU(oldp)->ru_oublock) +
@ -451,6 +461,14 @@ get_io_total(struct kinfo_proc *pp)
return (ret);
}
long
get_io_total(struct kinfo_proc *pp)
{
long dummy;
return (get_io_stats(pp, &dummy, &dummy, &dummy));
}
static struct handle handle;
caddr_t
@ -461,6 +479,8 @@ get_process_info(si, sel, compare)
{
int i;
int total_procs;
long p_io;
long p_inblock, p_oublock, p_majflt;
int active_procs;
struct kinfo_proc **prefp;
struct kinfo_proc *pp;
@ -517,6 +537,9 @@ get_process_info(si, sel, compare)
/* count up process states and get pointers to interesting procs */
total_procs = 0;
active_procs = 0;
total_inblock = 0;
total_oublock = 0;
total_majflt = 0;
memset((char *)process_states, 0, sizeof(process_states));
prefp = pref;
for (pp = pbase, i = 0; i < nproc; pp++, i++)
@ -527,16 +550,21 @@ get_process_info(si, sel, compare)
* status field. Processes with P_SYSTEM set are system
* processes---these get ignored unless show_sysprocs is set.
*/
if (pp->ki_stat != 0 &&
(show_self != pp->ki_pid) &&
(show_system || ((pp->ki_flag & P_SYSTEM) == 0)))
{
p_io = get_io_stats(pp, &p_inblock, &p_oublock, &p_majflt);
total_inblock += p_inblock;
total_oublock += p_oublock;
total_majflt += p_majflt;
total_procs++;
process_states[(unsigned char) pp->ki_stat]++;
if ((pp->ki_stat != SZOMB) &&
(displaymode == DISP_CPU &&
(show_idle || (pp->ki_pctcpu != 0) || pp->ki_stat == SRUN)) ||
(show_idle || (displaymode == DISP_IO && get_io_total(pp))) &&
(show_idle || (displaymode == DISP_IO && p_io != 0)) &&
(!show_uid || pp->ki_ruid == (uid_t)sel->uid))
{
/*
@ -589,6 +617,7 @@ format_next_process(handle, get_userid)
char status[16];
int state;
struct rusage ru, *rup;
long p_tot, s_tot;
/* find and remember the next proc structure */
hp = (struct handle *)handle;
@ -661,6 +690,8 @@ format_next_process(handle, get_userid)
} else {
rup = RU(pp);
}
p_tot = rup->ru_inblock + rup->ru_oublock + rup->ru_majflt;
s_tot = total_inblock + total_oublock + total_majflt;
sprintf(fmt, io_Proc_format,
pp->ki_pid,
@ -669,7 +700,8 @@ format_next_process(handle, get_userid)
(int)rup->ru_inblock,
(int)rup->ru_oublock,
(int)rup->ru_majflt,
(int)(rup->ru_inblock + rup->ru_oublock + rup->ru_majflt),
(int)p_tot,
p_tot == 0 ? 0.0 : ((float)(p_tot * 100))/(float)s_tot,
screen_width > cmdlengthdelta ?
screen_width - cmdlengthdelta : 0,
printable(pp->ki_comm));