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o Make iostat -Ix work: print per-interval I/O extended statistics.

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PR:		bin/112559
Submitted by:	Dan Nelson
MFC after:	2 weeks
This commit is contained in:
Maxim Konovalov 2007-05-12 09:28:34 +00:00
parent 47bfa7c265
commit 30ff126652
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=169496
1 changed files with 25 additions and 7 deletions
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32
usr.sbin/iostat/iostat.c
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@ -656,6 +656,8 @@ devstats(int perf_select, long double etime, int havelast)
long double transfers_per_second, transfers_per_second_read, transfers_per_second_write;
long double kb_per_transfer, mb_per_second, mb_per_second_read, mb_per_second_write;
u_int64_t total_bytes, total_transfers, total_blocks;
u_int64_t total_bytes_read, total_transfers_read;
u_int64_t total_bytes_write, total_transfers_write;
long double busy_pct;
u_int64_t queue_len;
long double total_mb;
@ -670,7 +672,10 @@ devstats(int perf_select, long double etime, int havelast)
if (Cflag > 0)
printf(" cpu ");
printf("\n");
printf("device r/s w/s kr/s kw/s wait svc_t %%b ");
if (Iflag == 0)
printf("device r/s w/s kr/s kw/s wait svc_t %%b ");
else
printf("device r/i w/i kr/i kw/i wait svc_t %%b ");
if (Tflag > 0)
printf("tin tout ");
if (Cflag > 0)
@ -690,7 +695,11 @@ devstats(int perf_select, long double etime, int havelast)
if (devstat_compute_statistics(&cur.dinfo->devices[di],
havelast ? &last.dinfo->devices[di] : NULL, etime,
DSM_TOTAL_BYTES, &total_bytes,
DSM_TOTAL_BYTES_READ, &total_bytes_read,
DSM_TOTAL_BYTES_WRITE, &total_bytes_write,
DSM_TOTAL_TRANSFERS, &total_transfers,
DSM_TOTAL_TRANSFERS_READ, &total_transfers_read,
DSM_TOTAL_TRANSFERS_WRITE, &total_transfers_write,
DSM_TOTAL_BLOCKS, &total_blocks,
DSM_KB_PER_TRANSFER, &kb_per_transfer,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
@ -731,12 +740,21 @@ devstats(int perf_select, long double etime, int havelast)
mb_per_second_read > ((long double).0005)/1024 ||
mb_per_second_write > ((long double).0005)/1024 ||
busy_pct > 0.5) {
printf("%-8.8s %5.1Lf %5.1Lf %7.1Lf %7.1Lf %4qu %5.1Lf %3.0Lf ",
devname, transfers_per_second_read,
transfers_per_second_write,
mb_per_second_read * 1024,
mb_per_second_write * 1024, queue_len,
ms_per_transaction, busy_pct);
if (Iflag == 0)
printf("%-8.8s %5.1Lf %5.1Lf %7.1Lf %7.1Lf %4qu %5.1Lf %3.0Lf ",
devname, transfers_per_second_read,
transfers_per_second_write,
mb_per_second_read * 1024,
mb_per_second_write * 1024, queue_len,
ms_per_transaction, busy_pct);
else
printf("%-8.8s %5.1Lf %5.1Lf %7.1Lf %7.1Lf %4qu %5.1Lf %3.0Lf ",
devname, (long double)total_transfers_read,
(long double)total_transfers_write,
(long double)total_bytes_read / 1024,
(long double)total_bytes_write / 1024, queue_len,
ms_per_transaction, busy_pct);
if (firstline) {
/*
* If this is the first device