Patch to add -p switch to output raw (not averaged) counters on parsable (tab-separated) lines. Also -H (no header.)

zpool_raw_stats.patch

Index: cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
===================================================================
--- cddl/contrib/opensolaris/cmd/zpool/zpool_main.c	(revision 327490)
+++ cddl/contrib/opensolaris/cmd/zpool/zpool_main.c	(working copy)
@@ -233,7 +233,7 @@
 		    "[-R root] [-F [-n]]\n"
 		    "\t    <pool | id> [newpool]\n"));
 	case HELP_IOSTAT:
-		return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
+		return (gettext("\tiostat [-Hpv] [-T d|u] [pool] ... [interval "
 		    "[count]]\n"));
 	case HELP_LABELCLEAR:
 		return (gettext("\tlabelclear [-f] <vdev>\n"));
@@ -2324,6 +2324,8 @@
 	int cb_namewidth;
 	int cb_iteration;
 	zpool_list_t *cb_list;
+	boolean_t cb_literal;
+	boolean_t cb_scripted;
 } iostat_cbdata_t;

 static void
@@ -2331,6 +2333,9 @@
 {
 	int i = 0;

+	if (cb->cb_scripted || cb->cb_literal)
+		return;
+
 	for (i = 0; i < cb->cb_namewidth; i++)
 		(void) printf("-");
 	(void) printf("  -----  -----  -----  -----  -----  -----\n");
@@ -2339,11 +2344,18 @@
 static void
 print_iostat_header(iostat_cbdata_t *cb)
 {
-	(void) printf("%*s     capacity     operations    bandwidth\n",
-	    cb->cb_namewidth, "");
-	(void) printf("%-*s  alloc   free   read  write   read  write\n",
-	    cb->cb_namewidth, "pool");
-	print_iostat_separator(cb);
+	if (cb->cb_scripted)
+		return;
+
+	if (cb->cb_literal) {
+		(void) printf("pool/dev\talloc\tfree\trops\twops\trbytes\twbytes\n");
+	} else {
+		(void) printf("%*s     capacity     operations    bandwidth\n",
+		    cb->cb_namewidth, "");
+		(void) printf("%-*s  alloc   free   read  write   read  write\n",
+		    cb->cb_namewidth, "pool");
+		print_iostat_separator(cb);
+	}
 }

 /*
@@ -2350,12 +2362,16 @@
  * Display a single statistic.
  */
 static void
-print_one_stat(uint64_t value)
+print_one_stat(uint64_t value, iostat_cbdata_t *cb)
 {
 	char buf[64];
-
-	zfs_nicenum(value, buf, sizeof (buf));
-	(void) printf("  %5s", buf);
+
+	if (cb->cb_literal) {
+		(void) printf("\t%lu", value);
+	} else {
+		zfs_nicenum(value, buf, sizeof (buf));
+		(void) printf("  %5s", buf);
+	}
 }

 /*
@@ -2385,11 +2401,15 @@
 	verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
 	    (uint64_t **)&newvs, &c) == 0);

-	if (strlen(name) + depth > cb->cb_namewidth)
-		(void) printf("%*s%s", depth, "", name);
-	else
-		(void) printf("%*s%s%*s", depth, "", name,
-		    (int)(cb->cb_namewidth - strlen(name) - depth), "");
+	if (cb->cb_literal) {
+		(void) printf("%.*s%s", depth, "::::::", name);
+	} else {
+		if (strlen(name) + depth > cb->cb_namewidth)
+			(void) printf("%*s%s", depth, "", name);
+		else
+			(void) printf("%*s%s%*s", depth, "", name,
+			    (int)(cb->cb_namewidth - strlen(name) - depth), "");
+	}

 	tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;

@@ -2398,25 +2418,31 @@
 	else
 		scale = (double)NANOSEC / tdelta;

+	if (cb->cb_literal)
+		scale = 1.0;
+
 	/* only toplevel vdevs have capacity stats */
 	if (newvs->vs_space == 0) {
-		(void) printf("      -      -");
+		if (cb->cb_literal)
+			(void) printf("\t-\t-");
+		else
+			(void) printf("      -      -");
 	} else {
-		print_one_stat(newvs->vs_alloc);
-		print_one_stat(newvs->vs_space - newvs->vs_alloc);
+		print_one_stat(newvs->vs_alloc, cb);
+		print_one_stat(newvs->vs_space - newvs->vs_alloc, cb);
 	}

 	print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
-	    oldvs->vs_ops[ZIO_TYPE_READ])));
+	    oldvs->vs_ops[ZIO_TYPE_READ])), cb);

 	print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
-	    oldvs->vs_ops[ZIO_TYPE_WRITE])));
+	    oldvs->vs_ops[ZIO_TYPE_WRITE])), cb);

 	print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
-	    oldvs->vs_bytes[ZIO_TYPE_READ])));
+	    oldvs->vs_bytes[ZIO_TYPE_READ])), cb);

 	print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
-	    oldvs->vs_bytes[ZIO_TYPE_WRITE])));
+	    oldvs->vs_bytes[ZIO_TYPE_WRITE])), cb);

 	(void) printf("\n");

@@ -2454,9 +2480,11 @@
 	 */

 	if (num_logs(newnv) > 0) {
-		(void) printf("%-*s      -      -      -      -      -      "
-		    "-\n", cb->cb_namewidth, "logs");
-
+		if (!cb->cb_scripted) {
+			(void) printf("%-*s      -      -      -"
+			    "      -      -      -\n",
+			    cb->cb_namewidth, "logs");
+		}
 		for (c = 0; c < children; c++) {
 			uint64_t islog = B_FALSE;
 			(void) nvlist_lookup_uint64(newchild[c],
@@ -2682,14 +2710,20 @@
 	unsigned long interval = 0, count = 0;
 	zpool_list_t *list;
 	boolean_t verbose = B_FALSE;
-	iostat_cbdata_t cb;
+	iostat_cbdata_t cb = {0};

 	/* check options */
-	while ((c = getopt(argc, argv, "T:v")) != -1) {
+	while ((c = getopt(argc, argv, "HT:pv")) != -1) {
 		switch (c) {
+		case 'H':
+			cb.cb_scripted = B_TRUE;
+			break;
 		case 'T':
 			get_timestamp_arg(*optarg);
 			break;
+		case 'p':
+			cb.cb_literal = B_TRUE;
+			break;
 		case 'v':
 			verbose = B_TRUE;
 			break;
@@ -2769,7 +2803,7 @@
 		if (npools > 1 && !verbose)
 			print_iostat_separator(&cb);

-		if (verbose)
+		if (verbose && !cb.cb_scripted)
 			(void) printf("\n");

 		/*