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);
}
/*
* 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);
}