diff options
Diffstat (limited to 'usr/src/man/man3malloc')
| -rw-r--r-- | usr/src/man/man3malloc/umem_alloc.3malloc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/usr/src/man/man3malloc/umem_alloc.3malloc b/usr/src/man/man3malloc/umem_alloc.3malloc index cc8e3df369..d8680ca083 100644 --- a/usr/src/man/man3malloc/umem_alloc.3malloc +++ b/usr/src/man/man3malloc/umem_alloc.3malloc @@ -174,6 +174,19 @@ Set the underlying function used to allocate memory. This option can be set to \fBmmap\fR(2)-based source. If set to a value that is not supported, \fBsbrk\fR will be used. .RE +.sp +.ne 2 +.na +\fB\fBperthread_cache\fR=\fBsize\fR\fR +.ad +.RS 16n +libumem allows for each thread to cache recently freed small allocations for +future allocations. The size argument, which accepts k, m, g, and t, suffixes +denotes the maximum amount of memory each thread can use for this purpose. The +default amount used is 1 MB. Any buffers in the per-thread cache are freed when +the thread exits. The efficacy of the per-thread cache can be determined with +the \fB::umastat\fR \fBmdb\fR(1) \fIdcmd\fR debugger command. +.RE .ne 2 .na |