search for: dmu_buf_impl_t

Displaying 5 results from an estimated 5 matches for "dmu_buf_impl_t".

2006 Mar 20
1
ARC cache issues with b35/b36; Bugs 6397610 / 6398177
...of the problem appear to be these kmem_caches: # mdb -k ... > ::kmastat cache buf buf buf memory alloc alloc name size in use total in use succeed fail ------------------------- ------ ------ ------ --------- --------- ----- ... dmu_buf_impl_t 192 2029 104328 20348928 326434 0 dnode_t 388 1529 84090 34443264 157309 0 arc_buf_hdr_t 92 13276 26460 2580480 140047 0 arc_buf_t 20 957 5915 143360 225786 0 zil_lwb_cache...
2007 Jul 26
2
Tracing znode_t from dnode_t
Hi, To get my understanding of zfs data structures correct, I need to trace znode_t from given dnode_t. I came up with following trace, is this correct? dnote_t->dn_bonus->db_user_ptr points to corresponding znode_t Is there any other(better) way to trace znode_t from dnode_t? Cheers, -Atul
2006 Nov 02
11
ZFS and memory usage.
...allocated. Here are some statistics of memory usage when the panic occurs: zfs_znode_cache: 356 * 11547 = 4110732 bytes zil_lwb_cache: 176 * 43 = 7568 bytes arc_buf_t: 20 * 7060 = 141200 bytes arc_buf_hdr_t: 188 * 7060 = 1327280 bytes dnode_t: 756 * 162311 = 122707116 bytes !! dmu_buf_impl_t: 332 * 18649 = 6191468 other: 14432256 bytes (regular kmem_alloc()) There is 1GB of RAM, 320MB is for the kernel. 1/3 if kernel memory is configured as ARC''s maximum. When it panics, debugger statistics show that there is around 2/3 of this actually allocated, but probably due m...
2007 Apr 20
0
problem mounting one of the zfs file system during boot
...Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Hardware watchdog enabled Hostname: chrysek /kernel/drv/sparcv9/zpool symbol avl_add multiply defined /kernel/drv/sparcv9/zpool symbol assfail3 multiply defined WARNING: kstat_create(''unix'', 0, ''dmu_buf_impl_t''): namespace collision mypool2/d3 uncorrectable error checking ufs filesystems /dev/rdsk/c1t0d0s7: is logging. When my system is booting it does complain about mypool2/d3 mypool2/d3 uncorrectable error but when system boots and I do [11:31:01] root at chrysek: /root > mount /d/d3 [11:...
2007 May 29
6
Deterioration with zfs performace and recent zfs bits?
Has anyone else noticed a significant zfs performance deterioration when running recent opensolaris bits? My 32-bit / 768 MB Toshiba Tecra S1 notebook was able to do a full opensolaris release build in ~ 4 hours 45 minutes (gcc shadow compilation disabled; using an lzjb compressed zpool / zfs on a single notebook hdd p-ata drive). After upgrading to 2007-05-25 opensolaris release bits