Tomas,
Yup, same here.
free 0
mem_inuse 16162750464
mem_total 17171480576
Page Summary Pages MB %Tot
------------ ---------------- ---------------- ----
Kernel 842305 3290 20%
ZFS File Data 2930 11 0%
Anon 44038 172 1%
Exec and libs 3731 14 0%
Page cache 8580 33 0%
Free (cachelist) 5504 21 0%
Free (freelist) 3284924 12831 78%
Total 4192012 16375
Physical 4192011 16375
I will create an SR with Oracle.
Thanks,
Peter
-----Original Message-----
From: Tomas Forsman [mailto:st...@acc.umu.se]
Sent: Mittwoch, 4. Januar 2012 00:39
To: Peter Radig
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] arc_no_grow is set to 1 and never set back to 0
On 03 January, 2012 - Peter Radig sent me these 3,5K bytes:
> 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?
New code that seems to be counting wrong.. I was planning on filing a bug, but
am currently struggling to convince oracle that we bought support..
Try this:
kstat -n zfs_file_data
In my case, I get:
free 15322
mem_inuse 24324866048
mem_total 25753026560
.. where ::memstat says:
Kernel 2638984 10308 42%
ZFS File Data 39260 153 1%
Anon 873549 3412 14%
Exec and libs 5199 20 0%
Page cache 20019 78 0%
Free (cachelist) 6608 25 0%
Free (freelist) 2703509 10560 43%
On another reboot, it refused to go over 130MB on a 24GB system..
> BTW: I was not seeing this on SolEx 11/10.
Dito.
> 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
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
/Tomas
--
Tomas Forsman, st...@acc.umu.se, http://www.acc.umu.se/~stric/
|- Student at Computing Science, University of Umeå
`- Sysadmin at {cs,acc}.umu.se
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