varnish and ram size
shahab bakhtiyari
shahab371 at gmail.com
Wed May 2 16:45:18 CEST 2012
Hi
here you can see outputs from top, and varnishstat -1
top:
12792 nobody 20 0 5639m 3.6g 3.4g S 13 94.3 2:01.63 varnishd
root at varnish:~# varnishstat -1
client_conn 259312 158.89 Client connections accepted
client_drop 0 0.00 Connection dropped, no sess/wrk
client_req 259212 158.83 Client requests received
cache_hit 33921 20.78 Cache hits
cache_hitpass 0 0.00 Cache hits for pass
cache_miss 225291 138.05 Cache misses
backend_conn 43774 26.82 Backend conn. success
backend_unhealthy 0 0.00 Backend conn. not attempted
backend_busy 0 0.00 Backend conn. too many
backend_fail 0 0.00 Backend conn. failures
backend_reuse 181617 111.28 Backend conn. reuses
backend_toolate 0 0.00 Backend conn. was closed
backend_recycle 181617 111.28 Backend conn. recycles
backend_unused 0 0.00 Backend conn. unused
fetch_head 0 0.00 Fetch head
fetch_length 225291 138.05 Fetch with Length
fetch_chunked 0 0.00 Fetch chunked
fetch_eof 0 0.00 Fetch EOF
fetch_bad 0 0.00 Fetch had bad headers
fetch_close 0 0.00 Fetch wanted close
fetch_oldhttp 0 0.00 Fetch pre HTTP/1.1 closed
fetch_zero 0 0.00 Fetch zero len
fetch_failed 0 0.00 Fetch failed
n_sess_mem 351 . N struct sess_mem
n_sess 102 . N struct sess
n_object 220554 . N struct object
n_vampireobject 0 . N unresurrected objects
n_objectcore 220557 . N struct objectcore
n_objecthead 216397 . N struct objecthead
n_smf 441172 . N struct smf
n_smf_frag 0 . N small free smf
n_smf_large 2 . N large free smf
n_vbe_conn 100 . N struct vbe_conn
n_wrk 121 . N worker threads
n_wrk_create 169 0.10 N worker threads created
n_wrk_failed 0 0.00 N worker threads not created
n_wrk_max 951160 582.82 N worker threads limited
n_wrk_queue 0 0.00 N queued work requests
n_wrk_overflow 2082 1.28 N overflowed work requests
n_wrk_drop 0 0.00 N dropped work requests
n_backend 1 . N backends
n_expired 4737 . N expired objects
n_lru_nuked 0 . N LRU nuked objects
n_lru_saved 0 . N LRU saved objects
n_lru_moved 26276 . N LRU moved objects
n_deathrow 0 . N objects on deathrow
losthdr 0 0.00 HTTP header overflows
n_objsendfile 0 0.00 Objects sent with sendfile
n_objwrite 259207 158.83 Objects sent with write
n_objoverflow 0 0.00 Objects overflowing workspace
s_sess 259212 158.83 Total Sessions
s_req 259212 158.83 Total Requests
s_pipe 0 0.00 Total pipe
s_pass 0 0.00 Total pass
s_fetch 225291 138.05 Total fetch
s_hdrbytes 119525246 73238.51 Total header bytes
s_bodybytes 2748370979 1684050.84 Total body bytes
sess_closed 259212 158.83 Session Closed
sess_pipeline 0 0.00 Session Pipeline
sess_readahead 0 0.00 Session Read Ahead
sess_linger 0 0.00 Session Linger
sess_herd 0 0.00 Session herd
shm_records 21397311 13111.10 SHM records
shm_writes 1445766 885.89 SHM writes
shm_flushes 27 0.02 SHM flushes due to overflow
shm_cont 9812 6.01 SHM MTX contention
shm_cycles 9 0.01 SHM cycles through buffer
sm_nreq 450644 276.13 allocator requests
sm_nobj 441170 . outstanding allocations
sm_balloc 3777261568 . bytes allocated
sm_bfree 743198720 . bytes free
sma_nreq 0 0.00 SMA allocator requests
sma_nobj 0 . SMA outstanding allocations
sma_nbytes 0 . SMA outstanding bytes
sma_balloc 0 . SMA bytes allocated
sma_bfree 0 . SMA bytes free
sms_nreq 0 0.00 SMS allocator requests
sms_nobj 0 . SMS outstanding allocations
sms_nbytes 0 . SMS outstanding bytes
sms_balloc 0 . SMS bytes allocated
sms_bfree 0 . SMS bytes freed
backend_req 225390 138.11 Backend requests made
n_vcl 1 0.00 N vcl total
n_vcl_avail 1 0.00 N vcl available
n_vcl_discard 0 0.00 N vcl discarded
n_purge 1 . N total active purges
n_purge_add 2 0.00 N new purges added
n_purge_retire 1 0.00 N old purges deleted
n_purge_obj_test 0 0.00 N objects tested
n_purge_re_test 0 0.00 N regexps tested against
n_purge_dups 0 0.00 N duplicate purges removed
hcb_nolock 259312 158.89 HCB Lookups without lock
hcb_lock 217430 133.23 HCB Lookups with lock
hcb_insert 217428 133.23 HCB Inserts
esi_parse 0 0.00 Objects ESI parsed (unlock)
esi_errors 0 0.00 ESI parse errors (unlock)
accept_fail 0 0.00 Accept failures
client_drop_late 0 0.00 Connection dropped late
uptime 1632 1.00 Client uptime
On 2 May 2012 12:31, Tollef Fog Heen <tfheen at varnish-software.com> wrote:
> ]] shahab bakhtiyari
>
> Hi,
>
> > what am I doing wrong? is there a way prohibit that or at least tell
> > varnish not to use the whole cache?
>
> Please provide the output of varnishstat -1 when it's using more than
> the allocated amount of resources and we might be able to figure out
> what's wrong.
>
> --
> Tollef Fog Heen
> Technical lead, Varnish Software
> t: +47 21 98 92 64
>
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