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Make ctlstat -n option work reasonably for sparse LUN list.

Browse Source 
MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2017-11-27 15:24:13 +00:00
parent fe267a5590
commit 5be4479bfd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=326273
1 changed files with 21 additions and 28 deletions
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49
usr.bin/ctlstat/ctlstat.c
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@ -320,11 +320,12 @@ static const char *iotypes[] = {"NO IO", "READ", "WRITE"};
static void
ctlstat_dump(struct ctlstat_context *ctx)
{
int iotype, i;
int iotype, i, n;
struct ctl_io_stats *stats = ctx->cur_stats;
for (i = 0; i < ctx->cur_items;i++) {
if (F_MASK(ctx) && bit_test(ctx->item_mask, i) == 0)
for (i = n = 0; i < ctx->cur_items;i++) {
if (F_MASK(ctx) && bit_test(ctx->item_mask,
(int)stats[i].item) == 0)
continue;
printf("%s %d\n", F_PORTS(ctx) ? "port" : "lun", stats[i].item);
for (iotype = 0; iotype < CTL_STATS_NUM_TYPES; iotype++) {
@ -341,17 +342,20 @@ ctlstat_dump(struct ctlstat_context *ctx)
PRINT_BINTIME(stats[i].dma_time[iotype]);
printf("\n");
}
if (++n >= ctx->numdevs)
break;
}
}
static void
ctlstat_json(struct ctlstat_context *ctx) {
int iotype, i;
int iotype, i, n;
struct ctl_io_stats *stats = ctx->cur_stats;
printf("{\"%s\":[", F_PORTS(ctx) ? "ports" : "luns");
for (i = 0; i < ctx->cur_items; i++) {
if (F_MASK(ctx) && bit_test(ctx->item_mask, i) == 0)
for (i = n = 0; i < ctx->cur_items; i++) {
if (F_MASK(ctx) && bit_test(ctx->item_mask,
(int)stats[i].item) == 0)
continue;
printf("{\"num\":%d,\"io\":[",
stats[i].item);
@ -372,6 +376,8 @@ ctlstat_json(struct ctlstat_context *ctx) {
printf(","); /* continue io array */
}
printf("]}");
if (++n >= ctx->numdevs)
break;
if (i < (ctx->cur_items - 1))
printf(","); /* continue lun array */
}
@ -383,7 +389,7 @@ ctlstat_standard(struct ctlstat_context *ctx) {
long double etime;
uint64_t delta_jiffies, delta_idle;
long double cpu_percentage;
int i, j;
int i, j, n;
cpu_percentage = 0;
@ -413,10 +419,6 @@ ctlstat_standard(struct ctlstat_context *ctx) {
if (F_HDR(ctx)) {
ctx->header_interval--;
if (ctx->header_interval <= 0) {
int hdr_devs;
hdr_devs = 0;
if (F_CPU(ctx))
fprintf(stdout, " CPU");
if (F_TOTALS(ctx)) {
@ -425,9 +427,9 @@ ctlstat_standard(struct ctlstat_context *ctx) {
(F_TIMEVAL(ctx) != 0) ? " " : "",
(F_TIMEVAL(ctx) != 0) ? " " : "",
(F_TIMEVAL(ctx) != 0) ? " " : "");
hdr_devs = 3;
n = 3;
} else {
for (i = 0; i < min(CTL_STAT_BITS,
for (i = n = 0; i < min(CTL_STAT_BITS,
ctx->cur_items); i++) {
int item;
@ -444,13 +446,14 @@ ctlstat_standard(struct ctlstat_context *ctx) {
fprintf(stdout, "%15.6s%d %s",
F_PORTS(ctx) ? "port" : "lun", item,
(F_TIMEVAL(ctx) != 0) ? " " : "");
hdr_devs++;
if (++n >= ctx->numdevs)
break;
}
fprintf(stdout, "\n");
}
if (F_CPU(ctx))
fprintf(stdout, " ");
for (i = 0; i < hdr_devs; i++)
for (i = 0; i < n; i++)
fprintf(stdout, "%s KB/t %s MB/s",
(F_TIMEVAL(ctx) != 0) ? " ms" : "",
(F_DMA(ctx) == 0) ? "tps" : "dps");
@ -534,7 +537,7 @@ ctlstat_standard(struct ctlstat_context *ctx) {
dmas_per_sec[i], mbsec[i]);
}
} else {
for (i = 0; i < min(CTL_STAT_BITS, ctx->cur_items); i++) {
for (i = n = 0; i < min(CTL_STAT_BITS, ctx->cur_items); i++) {
long double mbsec, kb_per_transfer;
long double transfers_per_sec;
long double ms_per_transfer;
@ -565,6 +568,8 @@ ctlstat_standard(struct ctlstat_context *ctx) {
fprintf(stdout, " %4.0Lf %5.0Lf %4.0Lf",
kb_per_transfer, (F_DMA(ctx) == 0) ?
transfers_per_sec : dmas_per_sec, mbsec);
if (++n >= ctx->numdevs)
break;
}
}
}
@ -670,18 +675,6 @@ main(int argc, char **argv)
ctx.flags |= CTLSTAT_FLAG_LUNS;
}
if (!F_TOTALS(&ctx) && !F_MASK(&ctx)) {
/*
* Note that this just selects the first N LUNs to display,
* but at this point we have no knoweledge of which LUN
* numbers actually exist. So we may select LUNs that
* aren't there.
*/
bit_nset(ctx.item_mask, 0, min(ctx.numdevs - 1,
CTL_STAT_BITS - 1));
ctx.flags |= CTLSTAT_FLAG_MASK;
}
if ((fd = open(CTL_DEFAULT_DEV, O_RDWR)) == -1)
err(1, "cannot open %s", CTL_DEFAULT_DEV);