Beispiel #1
0
static void
storage_OS_get_memstat(void)
{
	struct memory_type *mt_item;
	struct storage_entry *entry;

	if (mt_list == NULL) {
		if ((mt_list = memstat_mtl_alloc()) == NULL)
			/* again? we have a serious problem */
		return;
	}

	if (memstat_sysctl_all(mt_list, 0) < 0) {
		syslog(LOG_ERR, "memstat_sysctl_all failed: %s",
		    memstat_strerror(memstat_mtl_geterror(mt_list)) );
		return;
	}

	if ((mt_item = memstat_mtl_first(mt_list)) == NULL) {
		/* usually this is not an error, no errno for this failure*/
		HRDBG("memstat_mtl_first failed");
		return;
	}

	do {
		const char *memstat_name;
		uint64_t tmp_size;
		int allocator;
		char alloc_descr[SE_DESC_MLEN];

		memstat_name = memstat_get_name(mt_item);

		if (memstat_name == NULL || strlen(memstat_name) == 0)
			continue;

		switch (allocator = memstat_get_allocator(mt_item)) {

		  case ALLOCATOR_MALLOC:
			snprintf(alloc_descr, sizeof(alloc_descr),
			    "MALLOC: %s", memstat_name);
			break;

		  case ALLOCATOR_UMA:
			snprintf(alloc_descr, sizeof(alloc_descr),
			    "UMA: %s", memstat_name);
			break;

		  default:
			snprintf(alloc_descr, sizeof(alloc_descr),
			    "UNKNOWN%d: %s", allocator, memstat_name);
			break;
		}

		if ((entry = storage_find_by_name(alloc_descr)) == NULL &&
		    (entry = storage_entry_create(alloc_descr)) == NULL)
			return;

		entry->flags |= HR_STORAGE_FOUND;
		entry->type = &OIDX_hrStorageRam_c;

		if ((tmp_size = memstat_get_size(mt_item)) == 0)
			tmp_size = memstat_get_sizemask(mt_item);
		entry->allocationUnits =
		    (tmp_size  > INT_MAX ? INT_MAX : (int32_t)tmp_size);

		tmp_size  = memstat_get_countlimit(mt_item);
		entry->size =
		    (tmp_size  > INT_MAX ? INT_MAX : (int32_t)tmp_size);

		tmp_size = memstat_get_count(mt_item);
		entry->used =
		    (tmp_size  > INT_MAX ? INT_MAX : (int32_t)tmp_size);

		tmp_size = memstat_get_failures(mt_item);
		entry->allocationFailures =
		    (tmp_size  > INT_MAX ? INT_MAX : (int32_t)tmp_size);

	} while((mt_item = memstat_mtl_next(mt_item)) != NULL);
}
Beispiel #2
0
/*
 * Print mbuf statistics.
 */
void
mbpr(void *kvmd, u_long mbaddr)
{
	struct memory_type_list *mtlp;
	struct memory_type *mtp;
	uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
	uintmax_t cluster_count, cluster_bytes, cluster_limit, cluster_free;
	uintmax_t cluster_failures, cluster_size;
	uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
	uintmax_t tag_count, tag_bytes;
	uintmax_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free;
	uintmax_t jumbop_failures, jumbop_size;
	uintmax_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free;
	uintmax_t jumbo9_failures, jumbo9_size;
	uintmax_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free;
	uintmax_t jumbo16_failures, jumbo16_size;
	uintmax_t bytes_inuse, bytes_incache, bytes_total;
	int nsfbufs, nsfbufspeak, nsfbufsused;
	struct mbstat mbstat;
	size_t mlen;
	int error;

	mtlp = memstat_mtl_alloc();
	if (mtlp == NULL) {
		warn("memstat_mtl_alloc");
		return;
	}

	/*
	 * Use memstat_*_all() because some mbuf-related memory is in uma(9),
	 * and some malloc(9).
	 */
	if (live) {
		if (memstat_sysctl_all(mtlp, 0) < 0) {
			warnx("memstat_sysctl_all: %s",
			    memstat_strerror(memstat_mtl_geterror(mtlp)));
			goto out;
		}
	} else {
#ifndef __rtems__
		if (memstat_kvm_all(mtlp, kvmd) < 0) {
			error = memstat_mtl_geterror(mtlp);
			if (error == MEMSTAT_ERROR_KVM)
				warnx("memstat_kvm_all: %s",
				    kvm_geterr(kvmd));
			else
				warnx("memstat_kvm_all: %s",
				    memstat_strerror(error));
			goto out;
		}
#else
		;
#endif
	}

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
		goto out;
	}
	mbuf_count = memstat_get_count(mtp);
	mbuf_bytes = memstat_get_bytes(mtp);
	mbuf_free = memstat_get_free(mtp);
	mbuf_failures = memstat_get_failures(mtp);
	mbuf_size = memstat_get_size(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found",
		    MBUF_PACKET_MEM_NAME);
		goto out;
	}
	packet_count = memstat_get_count(mtp);
	packet_bytes = memstat_get_bytes(mtp);
	packet_free = memstat_get_free(mtp);
	packet_failures = memstat_get_failures(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found",
		    MBUF_CLUSTER_MEM_NAME);
		goto out;
	}
	cluster_count = memstat_get_count(mtp);
	cluster_bytes = memstat_get_bytes(mtp);
	cluster_limit = memstat_get_countlimit(mtp);
	cluster_free = memstat_get_free(mtp);
	cluster_failures = memstat_get_failures(mtp);
	cluster_size = memstat_get_size(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: malloc type %s not found",
		    MBUF_TAG_MEM_NAME);
		goto out;
	}
	tag_count = memstat_get_count(mtp);
	tag_bytes = memstat_get_bytes(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found",
		    MBUF_JUMBOP_MEM_NAME);
		goto out;
	}
	jumbop_count = memstat_get_count(mtp);
	jumbop_bytes = memstat_get_bytes(mtp);
	jumbop_limit = memstat_get_countlimit(mtp);
	jumbop_free = memstat_get_free(mtp);
	jumbop_failures = memstat_get_failures(mtp);
	jumbop_size = memstat_get_size(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found",
		    MBUF_JUMBO9_MEM_NAME);
		goto out;
	}
	jumbo9_count = memstat_get_count(mtp);
	jumbo9_bytes = memstat_get_bytes(mtp);
	jumbo9_limit = memstat_get_countlimit(mtp);
	jumbo9_free = memstat_get_free(mtp);
	jumbo9_failures = memstat_get_failures(mtp);
	jumbo9_size = memstat_get_size(mtp);

	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
	if (mtp == NULL) {
		warnx("memstat_mtl_find: zone %s not found",
		    MBUF_JUMBO16_MEM_NAME);
		goto out;
	}
	jumbo16_count = memstat_get_count(mtp);
	jumbo16_bytes = memstat_get_bytes(mtp);
	jumbo16_limit = memstat_get_countlimit(mtp);
	jumbo16_free = memstat_get_free(mtp);
	jumbo16_failures = memstat_get_failures(mtp);
	jumbo16_size = memstat_get_size(mtp);

	printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n",
	    mbuf_count + packet_count, mbuf_free + packet_free,
	    mbuf_count + packet_count + mbuf_free + packet_free);

	printf("%ju/%ju/%ju/%ju mbuf clusters in use "
	    "(current/cache/total/max)\n",
	    cluster_count - packet_free, cluster_free + packet_free,
	    cluster_count + cluster_free, cluster_limit);

	printf("%ju/%ju mbuf+clusters out of packet secondary zone in use "
	    "(current/cache)\n",
	    packet_count, packet_free);

	printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use "
	    "(current/cache/total/max)\n",
	    jumbop_count, jumbop_free, jumbop_count + jumbop_free,
	    jumbop_limit, jumbop_size / 1024);

	printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use "
	    "(current/cache/total/max)\n",
	    jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
	    jumbo9_limit);

	printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use "
	    "(current/cache/total/max)\n",
	    jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
	    jumbo16_limit);

#if 0
	printf("%ju mbuf tags in use\n", tag_count);
#endif

	/*-
	 * Calculate in-use bytes as:
	 * - straight mbuf memory
	 * - mbuf memory in packets
	 * - the clusters attached to packets
	 * - and the rest of the non-packet-attached clusters.
	 * - m_tag memory
	 * This avoids counting the clusters attached to packets in the cache.
	 * This currently excludes sf_buf space.
	 */
	bytes_inuse =
	    mbuf_bytes +			/* straight mbuf memory */
	    packet_bytes +			/* mbufs in packets */
	    (packet_count * cluster_size) +	/* clusters in packets */
	    /* other clusters */
	    ((cluster_count - packet_count - packet_free) * cluster_size) +
	    tag_bytes +
	    (jumbop_count * jumbop_size) +	/* jumbo clusters */
	    (jumbo9_count * jumbo9_size) +
	    (jumbo16_count * jumbo16_size);

	/*
	 * Calculate in-cache bytes as:
	 * - cached straught mbufs
	 * - cached packet mbufs
	 * - cached packet clusters
	 * - cached straight clusters
	 * This currently excludes sf_buf space.
	 */
	bytes_incache =
	    (mbuf_free * mbuf_size) +		/* straight free mbufs */
	    (packet_free * mbuf_size) +		/* mbufs in free packets */
	    (packet_free * cluster_size) +	/* clusters in free packets */
	    (cluster_free * cluster_size) +	/* free clusters */
	    (jumbop_free * jumbop_size) +	/* jumbo clusters */
	    (jumbo9_free * jumbo9_size) +
	    (jumbo16_free * jumbo16_size);

	/*
	 * Total is bytes in use + bytes in cache.  This doesn't take into
	 * account various other misc data structures, overhead, etc, but
	 * gives the user something useful despite that.
	 */
	bytes_total = bytes_inuse + bytes_incache;

	printf("%juK/%juK/%juK bytes allocated to network "
	    "(current/cache/total)\n", bytes_inuse / 1024,
	    bytes_incache / 1024, bytes_total / 1024);

	printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/"
	    "mbuf+clusters)\n", mbuf_failures, cluster_failures,
	    packet_failures);

	printf("%ju/%ju/%ju requests for jumbo clusters denied "
	    "(%juk/9k/16k)\n", jumbop_failures, jumbo9_failures,
	    jumbo16_failures, jumbop_size / 1024);

	if (live) {
		mlen = sizeof(nsfbufs);
		if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL,
		    0) &&
		    !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused,
		    &mlen, NULL, 0) &&
		    !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak,
		    &mlen, NULL, 0))
			printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
			    nsfbufsused, nsfbufspeak, nsfbufs);
		mlen = sizeof(mbstat);
		if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) {
			warn("kern.ipc.mbstat");
			goto out;
		}
	} else {
		if (kread(mbaddr, (char *)&mbstat, sizeof mbstat) != 0)
			goto out;
	}
	printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail);
	printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait);
	printf("%lu requests for I/O initiated by sendfile\n",
	    mbstat.sf_iocnt);
	printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
out:
	memstat_mtl_free(mtlp);
}