diff options
Diffstat (limited to 'usr/src/lib/libumem/common/umem.c')
| -rw-r--r-- | usr/src/lib/libumem/common/umem.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/usr/src/lib/libumem/common/umem.c b/usr/src/lib/libumem/common/umem.c index a3eb0b8e6c..9ee030dd47 100644 --- a/usr/src/lib/libumem/common/umem.c +++ b/usr/src/lib/libumem/common/umem.c @@ -21,11 +21,10 @@ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2012 Joyent, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * based on usr/src/uts/common/os/kmem.c r1.64 from 2001/12/18 * @@ -355,6 +354,17 @@ * umem_log_header_t's: * lh_cpu[*].clh_lock * lh_lock + * + * 7. Changing UMEM_MAXBUF + * ----------------------- + * + * When changing UMEM_MAXBUF extra care has to be taken. It is not sufficient to + * simply increase this number. First, one must update the umem_alloc_table to + * have the appropriate number of entires based upon the new size. If this is + * not done, this will lead to libumem blowing an assertion. + * + * The second place to update, which is not required, is the umem_alloc_sizes. + * These determine the default cache sizes that we're going to support. */ #include <umem_impl.h> @@ -420,7 +430,9 @@ static int umem_alloc_sizes[] = { P2ALIGN(8192 / 2, 64), 4544, P2ALIGN(8192 / 1, 64), 9216, 4096 * 3, - UMEM_MAXBUF, /* = 8192 * 2 */ + 8192 * 2, /* = 8192 * 2 */ + 24576, 32768, 40960, 49152, 57344, 65536, 73728, 81920, + 90112, 98304, 106496, 114688, 122880, UMEM_MAXBUF, /* 128k */ /* 24 slots for user expansion */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, @@ -592,6 +604,20 @@ umem_cache_t umem_null_cache = { static umem_cache_t *umem_alloc_table[UMEM_MAXBUF >> UMEM_ALIGN_SHIFT] = { ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, + ALLOC_TABLE_1024, ALLOC_TABLE_1024 }; |