Bug 84946
| Summary: | 'Mbuf' instead of 'mbuf' in libmemstat(3) | ||
|---|---|---|---|
| Product: | Documentation | Reporter: | Wojciech A. Koszek <dunstan> |
| Component: | Books & Articles | Assignee: | Robert Watson <rwatson> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Latest | ||
| Hardware: | Any | ||
| OS: | Any | ||
State Changed
From-To: open->patched
Slightly expanded version of patch applied (also renamed other references
to Mbuf) to HEAD, will MFC with re@'s permission. Thanks for the bug
report!
FYI: I've actually been considering committing a slightly larger example
that also retrieves the count from the mbuf_packet zone, since those are
also allocated mbufs. Something like the following:
struct memory_type_list *mtlp;
struct memory_type *mtp;
uint64_t mbuf_count, mbuf_packet_count;
mtlp = memstat_mtl_alloc();
if (mtlp == NULL)
err(-1, "memstat_mtl_alloc");
if (memstat_sysctl_uma(mtlp, 0) < 0)
err(-1, "memstat_sysctl_uma");
mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, "mbuf");
if (mtp == NULL)
errx(-1, "memstat_mtl_find: mbuf not found");
mbuf_count = memstat_get_count(mtp);
mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, "mbuf_packet");
if (mtp == NULL)
errx(-1, "memstat_mtl_find: mbuf_packet not found");
mbuf_packet_count = memstat_get_count(mtp);
memstat_mtl_free(mtlp);
printf("mbufs: %llun", (unsigned long long)(mbuf_count +
mbuf_packet_count));
Responsible Changed From-To: freebsd-doc->rwatson Take ownership of this PR since I am responsible for libmemstat(3). Pointed to by simon. State Changed From-To: patched->closed MFC'd to RELENG_6 as libmemstat.3:1.6.2.2, so will appear in 6.0-RELEASE. Thanks! |
libmemstat(3) is case-sensitive in memstat_mtl_find(): LIST_FOREACH(mtp, &list->mtl_list, mt_list) { if ((mtp->mt_allocator == allocator || allocator == ALLOCATOR_ANY) && strcmp(mtp->mt_name, name) == 0) Example in manual page says: dunstan@laptop:(~)$ man libmemstat | grep Mbuf [..] mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, "Mbuf"); [..] Fix: http://freebsd.czest.pl/dunstan/FreeBSD/diff.0.libmemstat.3 How-To-Repeat: dunstan@laptop:(~)$ vmstat -z | grep mbuf mbuf_cluster: 2048, 17088, 128, 6, 128 mbuf: 256, 0, 385, 140, 426657 mbuf_packet: 256, 0, 388, 137, 150050