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alpine-devel

Re: [alpine-devel] Chronyd blocks boot for ~5s. How can I improve this?

From: 段垚 <duanyao_at_ustc.edu>
Date: Thu, 16 Mar 2017 11:28:07 +0800

在 2017/3/16 10:26, Ivan Tham 写道:
> I didn't notice slowdown with chronyd as I had enable rc_parallel.
>
> But I did notice that I have to wait for tor to finish starting up which took
> some time and as well it is the last service to be started on boot.
Really? I tried rc_parallel but it made little difference for me. Maybe
because chronyd is the slowest one in my system.
>
> By the way duan yao, do you use IME in alpine?
What does IME stand for here? If it's Input Method, no.
>
> 段垚 <duanyao_at_ustc.edu> wrote:
>
>> 在 2017/3/15 22:08, Stuart Cardall 写道:
>>
>>> I noticed this with chronyd too - now I use sntpc with:
>>>
>>> SNTPC_INTERVAL="21600"
>>>
>>> set in /etc/conf.d/sntpc
>>>
>>> Stuart Cardall.
>>>
>>>
>> Great to know sntp.
>>
>> I also found that I can workaround this issue by add `--background`
>> option to `start-stop-daemon` in `/etc/init.d/chronyd`.
>> However don't know whether this breaks anything.
>>
>>> On 03/15/2017 06:50 AM, 段垚 wrote:
>>>> Hi,
>>>>
>>>> I'm new to Apline and just installed Apline 3.5.2 to hard disk (in
>>>> Virtualbox, x86_64) with default options. During the boot, I note
>>>> that chronyd takes ~5 seconds to start, which I think is too much.
>>>> How can I improve this?
>>>>
>>>> Wireshark shows that there are 3~4 NTP requests sent during the boot
>>>> with a interval ~2s, I think this explains why chronyd takes so much
>>>> time to start. But why can't it do this in background?
>>>>
>>>> I try to start chronyd in command line, it also takes >5s before
>>>> going to background:
>>>>
>>>> # rc-service chronyd stop
>>>> * Stopping chronyd ...
>>>> # time chronyd
>>>> real 0m 7.37s
>>>> user 0m 0.00s
>>>> sys 0m 0.00s
>>>>
>>>> However I failed to find an option for command line or configure file
>>>> to change this behavior.




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Received on Thu Mar 16 2017 - 11:28:07 GMT