Hello.
I have a Solaris 11/11 x86 box (which I migrated from SolEx 11/10 a couple of
weeks ago).
Without no obvious reason (at least for me), after an uptime of 1 to 2 days
(observed 3 times now) Solaris sets arc_no_grow to 1 and then never sets it
back to 0. ARC is being shrunk to less than 1 GB -- needless to say that
performance is terrible. There is not much load on this system.
Memory seems to be not an issue (see below).
I looked at the old Nevada code base of onnv_147 and can't find a reason for
this happening.
How can I find out what's causing this?
BTW: I was not seeing this on SolEx 11/10.
Thanks,
Peter
*** ::memstat ***
Page Summary Pages MB %Tot
------------ ---------------- ---------------- ----
Kernel 860254 3360 21%
ZFS File Data 3047 11 0%
Anon 38246 149 1%
Exec and libs 3765 14 0%
Page cache 8517 33 0%
Free (cachelist) 5866 22 0%
Free (freelist) 3272317 12782 78%
Total 4192012 16375
Physical 4192011 16375
mem_inuse 4145901568
mem_total 1077466365952
*** ::arc ***
hits = 186279921
misses = 14366462
demand_data_hits = 4648464
demand_data_misses = 8605873
demand_metadata_hits = 171803126
demand_metadata_misses = 3805675
prefetch_data_hits = 772678
prefetch_data_misses = 1464457
prefetch_metadata_hits = 9055653
prefetch_metadata_misses = 490457
mru_hits = 12295087
mru_ghost_hits = 0
mfu_hits = 175281066
mfu_ghost_hits = 0
deleted = 14462192
mutex_miss = 308888
hash_elements = 3752768
hash_elements_max = 3752770
hash_collisions = 11409790
hash_chains = 8256
hash_chain_max = 20
p = 48 MB
c = 781 MB
c_min = 64 MB
c_max = 15351 MB
size = 788 MB
buf_size = 185 MB
data_size = 289 MB
other_size = 313 MB
l2_hits = 0
l2_misses = 14366462
l2_feeds = 0
l2_rw_clash = 0
l2_read_bytes = 0 MB
l2_write_bytes = 0 MB
l2_writes_sent = 0
l2_writes_done = 0
l2_writes_error = 0
l2_writes_hdr_miss = 0
l2_evict_lock_retry = 0
l2_evict_reading = 0
l2_abort_lowmem = 490
l2_cksum_bad = 0
l2_io_error = 0
l2_hdr_size = 0 MB
memory_throttle_count = 0
meta_used = 499 MB
meta_max = 1154 MB
meta_limit = 0 MB
arc_no_grow = 1
arc_tempreserve = 0 MB
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