Varnish 4 Performance Issues
Junaid Mukhtar
junaid.mukhtar at gmail.com
Mon Sep 24 08:34:28 UTC 2018
Hi
Apologies but I am not allowed to share the VCL. If there's any other thing
like stats etc that might be helpful then do let me know
--------
Regards,
Junaid
On Fri, Sep 21, 2018 at 4:15 PM Guillaume Quintard <
guillaume at varnish-software.com> wrote:
> would you be able to share your vcl?
> --
> Guillaume Quintard
>
>
> On Fri, Sep 21, 2018 at 4:54 PM Junaid Mukhtar <junaid.mukhtar at gmail.com>
> wrote:
>
>> Any help guys; this is really getting to us.....
>>
>> --------
>> Regards,
>> Junaid
>>
>>
>> On Thu, Sep 20, 2018 at 3:57 PM Junaid Mukhtar <junaid.mukhtar at gmail.com>
>> wrote:
>>
>>>
>>> This is what we get in varnishhist
>>>
>>> 280_
>>>
>>>
>>>
>>> |
>>> 230_ |
>>> |
>>> |
>>> |
>>> |
>>> 180_ |
>>> ||
>>> ||
>>> |||
>>> |||
>>> 130_ |||
>>> |||
>>> ||||||
>>> ||||||
>>> ||||||
>>> 80_ ||||||
>>>
>>> |||||| #
>>>
>>> |||||| ###
>>>
>>> ||||||| # ###
>>>
>>> ||||||||| ##### #
>>> 30_
>>> ||||||||| ########
>>>
>>> |||||||||
>>> #########
>>>
>>> ||||||||||
>>> ###########
>>>
>>> |||||||||||| ## #
>>> ############# #
>>>
>>> +---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------
>>> |1e-6 |1e-5 |1e-4
>>> |1e-3 |1e-2 |1e-1
>>> |1e0 |1e1 |1e2
>>> --------
>>> Regards,
>>> Junaid
>>>
>>>
>>> On Thu, Sep 20, 2018 at 3:54 PM Junaid Mukhtar <junaid.mukhtar at gmail.com>
>>> wrote:
>>>
>>>> Below is the output; all of them are default except i was trying to up
>>>> the threads_pool to 4 but didn't feel any imporvement in performance
>>>> degradation
>>>>
>>>> accept_filter off [bool] (default)
>>>> acceptor_sleep_decay 0.9 (default)
>>>> acceptor_sleep_incr 0.000 [seconds] (default)
>>>> acceptor_sleep_max 0.050 [seconds] (default)
>>>> auto_restart on [bool] (default)
>>>> backend_idle_timeout 60.000 [seconds] (default)
>>>> ban_dups on [bool] (default)
>>>> ban_lurker_age 60.000 [seconds] (default)
>>>> ban_lurker_batch 1000 (default)
>>>> ban_lurker_sleep 0.010 [seconds] (default)
>>>> between_bytes_timeout 60.000 [seconds] (default)
>>>> cc_command "exec gcc -std=gnu99 -O2 -g
>>>> -Wp,-D_FORTIFY_SOURCE=0 -Wall -Werror -pthread -fpic -shared -Wl,-x -o %o
>>>> %s" (default)
>>>> cli_buffer 8k [bytes] (default)
>>>> cli_limit 48k [bytes] (default)
>>>> cli_timeout 60.000 [seconds] (default)
>>>> clock_skew 10 [seconds] (default)
>>>> clock_step 1.000 [seconds] (default)
>>>> connect_timeout 3.500 [seconds] (default)
>>>> critbit_cooloff 180.000 [seconds] (default)
>>>> debug none (default)
>>>> default_grace 10.000 [seconds] (default)
>>>> default_keep 0.000 [seconds] (default)
>>>> default_ttl 120.000 [seconds] (default)
>>>> feature none (default)
>>>> fetch_chunksize 16k [bytes] (default)
>>>> fetch_maxchunksize 0.25G [bytes] (default)
>>>> first_byte_timeout 60.000 [seconds] (default)
>>>> gzip_buffer 32k [bytes] (default)
>>>> gzip_level 6 (default)
>>>> gzip_memlevel 8 (default)
>>>> http_gzip_support on [bool] (default)
>>>> http_max_hdr 64 [header lines] (default)
>>>> http_range_support on [bool] (default)
>>>> http_req_hdr_len 8k [bytes] (default)
>>>> http_req_size 32k [bytes] (default)
>>>> http_resp_hdr_len 8k [bytes] (default)
>>>> http_resp_size 32k [bytes] (default)
>>>> idle_send_timeout 60.000 [seconds] (default)
>>>> listen_depth 1024 [connections] (default)
>>>> lru_interval 2.000 [seconds] (default)
>>>> max_esi_depth 5 [levels] (default)
>>>> max_restarts 4 [restarts] (default)
>>>> max_retries 4 [retries] (default)
>>>> nuke_limit 50 [allocations] (default)
>>>> pcre_match_limit 10000 (default)
>>>> pcre_match_limit_recursion 20 (default)
>>>> ping_interval 3 [seconds] (default)
>>>> pipe_timeout 60.000 [seconds] (default)
>>>> pool_req 10,100,10 (default)
>>>> pool_sess 10,100,10 (default)
>>>> pool_vbo 10,100,10 (default)
>>>> prefer_ipv6 off [bool] (default)
>>>> rush_exponent 3 [requests per request] (default)
>>>> send_timeout 600.000 [seconds] (default)
>>>> session_max 100000 [sessions] (default)
>>>> shm_reclen 255b [bytes] (default)
>>>> shortlived 10.000 [seconds] (default)
>>>> sigsegv_handler on [bool] (default)
>>>> syslog_cli_traffic on [bool] (default)
>>>> tcp_fastopen off [bool] (default)
>>>> tcp_keepalive_intvl 75.000 [seconds] (default)
>>>> tcp_keepalive_probes 9 [probes] (default)
>>>> tcp_keepalive_time 7200.000 [seconds] (default)
>>>> thread_pool_add_delay 0.000 [seconds] (default)
>>>> thread_pool_destroy_delay 1.000 [seconds] (default)
>>>> thread_pool_fail_delay 0.200 [seconds] (default)
>>>> thread_pool_max 5000 [threads] (default)
>>>> thread_pool_min 100 [threads] (default)
>>>> thread_pool_reserve 0 [threads] (default)
>>>> thread_pool_stack 48k [bytes] (default)
>>>> thread_pool_timeout 300.000 [seconds] (default)
>>>> thread_pools 2 [pools] (default)
>>>> thread_queue_limit 20 (default)
>>>> thread_stats_rate 10 [requests] (default)
>>>> timeout_idle 5.000 [seconds] (default)
>>>> timeout_linger 0.050 [seconds] (default)
>>>> vcc_allow_inline_c off [bool] (default)
>>>> vcc_err_unref on [bool] (default)
>>>> vcc_unsafe_path on [bool] (default)
>>>> vcl_cooldown 600.000 [seconds] (default)
>>>> vcl_dir /etc/varnish (default)
>>>> vmod_dir /usr/lib64/varnish/vmods (default)
>>>> vsl_buffer 4k [bytes] (default)
>>>> vsl_mask -VCL_trace,-WorkThread,-Hash,-VfpAcct
>>>> (default)
>>>> vsl_reclen 255b [bytes] (default)
>>>> vsl_space 80M [bytes] (default)
>>>> vsm_free_cooldown 60.000 [seconds] (default)
>>>> vsm_space 1M [bytes] (default)
>>>> workspace_backend 64k [bytes] (default)
>>>> workspace_client 64k [bytes] (default)
>>>> workspace_session 0.50k [bytes] (default)
>>>> workspace_thread 2k [bytes] (default)
>>>>
>>>>
>>>> --------
>>>> Regards,
>>>> Junaid
>>>>
>>>>
>>>> On Thu, Sep 20, 2018 at 3:37 PM Dridi Boukelmoune <dridi at varni.sh>
>>>> wrote:
>>>>
>>>>> On Thu, Sep 20, 2018 at 4:14 PM Junaid Mukhtar <
>>>>> junaid.mukhtar at gmail.com> wrote:
>>>>> >
>>>>> > Hi
>>>>> >
>>>>> > we are in middle of upgrading from varnish 3.0.7 to varnish 4.1.10;
>>>>> but unfortunately all of the response times in the performance test are
>>>>> indicating an increase of at least 100%
>>>>> >
>>>>> > We have analyzed the logs and everything but can't get around this;
>>>>> the issue is not only for the non-cached pages but it's also impacting the
>>>>> cached pages. We are also struggling to analyze it further as well, any
>>>>> guidenace as to what we can do in terms of putting debug logging in would
>>>>> be helpful.
>>>>> >
>>>>> > One of the areas we are considering is to output response times, but
>>>>> it's proving difficult for me. Any suggestions
>>>>>
>>>>> Hello,
>>>>>
>>>>> What is the output of `varnishadm param.show` ?
>>>>>
>>>>> Dridi
>>>>>
>>>> _______________________________________________
>> varnish-misc mailing list
>> varnish-misc at varnish-cache.org
>> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>>
>
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