Date: Fri, 27 Oct 2023 17:08:18 +0200 From: Guido Falsi <mad@madpilot.net> To: freebsd-stable@freebsd.org Subject: Re: periodic daily takes a very long time to run (14-stable) Message-ID: <7968dd3b-5a79-475a-9edb-fd2cc7cb8ea4@madpilot.net> In-Reply-To: <b517b419-3583-4062-b6d8-aecc022e4081@madpilot.net> References: <ZTuNvVMW_XG3mZKU@int21h> <1122335317.4913.1698407124469@localhost> <ZTuyXPjddEPqh-bi@int21h> <794932758.6659.1698413675475@localhost> <ZTvMODY-mcBImHZP@int21h> <b517b419-3583-4062-b6d8-aecc022e4081@madpilot.net>
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On 27/10/23 17:07, Guido Falsi wrote:
> On 27/10/23 16:42, void wrote:
>> On Fri, Oct 27, 2023 at 03:34:35PM +0200, Ronald Klop wrote:
>>> So if my observation is right it might be interesting to find out
>>> what is writing.
>>
>> would ktrace and/or truss be useful? something else? The truss -p
>> output of the
>> find PID produces massive amounts of output, all like this:
>>
>> fstatat(AT_FDCWD,"5e70d5f895ccc92af6a7d5226f818b-81464.o",{
>> mode=-rw-r--r-- ,inode=367004,size=10312,blksize=10752
>> },AT_SYMLINK_NOFOLLOW) = 0 (0x0)
>>
>> with the filename changing each time
>>
>> (later...)
>>
>> that file is in ccache!!!
>>
>> locate 5e70d5f895ccc92af6a7d5226f818b-81464.o
>> /var/cache/ccache/f/5/5e70d5f895ccc92af6a7d5226f818b-81464.o
>>
>> maybe if I can exclude that dir (and /usr/obj) it'll lessen the
>> periodic runtime.
>> But i don't know yet whats calling find(1) when periodic daily runs.
>> If I can, I might be able to tell it not to walk certain heirarchies.
>
>
> I stumbled on a similar problem. Periodic trying to scan huge ccache
> directories.
>
> The script doing that was locate database indexing in weekly. Not sure
> if you're having the same issue, but this could give you ideas.
>
> My fix was:
>
> weekly_locate_enable="YES"
> PRUNEPATHS="/tmp, /usr/tmp, /var/tmp, /var/db/portsnap,
> /var/db/freebsd-update, /dumpster/ccache, /poudriere"
>
Forgot to mention, this goes in /etc/periodic.conf.
--
Guido Falsi <mad@madpilot.net>
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