On 03 January, 2007 - Mark Maybee sent me these 5,0K bytes:
> Tomas,
>
> There are a couple of things going on here:
>
> 1. There is a lot of fragmentation in your meta-data caches (znode,
> dnode, dbuf, etc). This is burning up about 300MB of space in your
> hung kernel. This is a known problem that we are currently working
> on.
Great!
> 2. While the ARC has set its desired size down to c_min (64MB), its
> actually still consuming ~800MB in the hung kernel. This is odd.
> The bulk of this space is in the 32K and 64K data caches. Could
> you print out the contents of ARC_anon, ARC_mru, ARC_mfu, ARC_mru_ghost,
> and ARC_mfu_ghost?
Like this?
> ARC_anon::print
{
list = {
list_size = 0
list_offset = 0
list_head = {
list_next = 0
list_prev = 0
}
}
lsize = 0
size = 0x19c000
hits = 0
mtx = {
_opaque = [ 0 ]
}
}
> ARC_mru::print
{
list = {
list_size = 0x90
list_offset = 0x70
list_head = {
list_next = 0x30072a5b5f8
list_prev = 0x300758b6c70
}
}
lsize = 0x1f88200
size = 0x3e5c200
hits = 0x44c48ad
mtx = {
_opaque = [ 0 ]
}
}
> ARC_mfu::print
{
list = {
list_size = 0x90
list_offset = 0x70
list_head = {
list_next = 0x30099c7a730
list_prev = 0x300dc11fee0
}
}
lsize = 0x2f2e4400
size = 0x318a8400
hits = 0x466bbec
mtx = {
_opaque = [ 0 ]
}
}
> ARC_mru_ghost::print
{
list = {
list_size = 0x90
list_offset = 0x70
list_head = {
list_next = 0x300758b6eb0
list_prev = 0x300d65faa10
}
}
lsize = 0x97a3cc00
size = 0x97a3cc00
hits = 0xfa4a49
mtx = {
_opaque = [ 0 ]
}
}
> ARC_mfu_ghost::print
{
list = {
list_size = 0x90
list_offset = 0x70
list_head = {
list_next = 0x3006c7c8ce0
list_prev = 0x300d65fa2c0
}
}
lsize = 0x879ddc00
size = 0x879ddc00
hits = 0x3b37c8
mtx = {
_opaque = [ 0 ]
}
}
/Tomas
--
Tomas Ögren, [EMAIL PROTECTED], http://www.acc.umu.se/~stric/
|- Student at Computing Science, University of Umeå
`- Sysadmin at {cs,acc}.umu.se
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