Correction: 

kern.bufcachepercentage=90

> On Mar 7, 2022, at 12:07 PM, Brian Brombacher <br...@planetunix.net> wrote:
> 
> Hi Mihai,
> 
> Not exactly related to disk speed, but have you cranked up the following 
> sysctl to see if it helps?
> 
> sysctl kern.bufcachepercentage=9
> 
> I put an entry in /etc/sysctl.conf for persistence.
> 
> This will cause up to 90% of system memory to be used as a unified buffer 
> cache for disk access.  Not sure if that helps but I use that value on every 
> install, including desktop and servers.  I can’t remember if the default 
> value has changed in the past 10 years but I always go with 90%.
> 
> -Brian
> 
>>> On Mar 7, 2022, at 6:17 AM, Mihai Popescu <mih...@gmail.com> wrote:
>>> 
>>> On Mon, Mar 7, 2022 at 8:46 AM Janne Johansson <icepic...@gmail.com> wrote:
>>> 
>>> Den sön 6 mars 2022 kl 16:41 skrev Mihai Popescu <mih...@gmail.com>:
>>>> 
>>>> Since this thread is moving slowly in another direction, let me
>>> 
>>> True
>>> 
>>>> reiterate my situation again: I am running a browser (mostly chromium)
>>>> and the computer slows down on downloads. Since I've checked the
>>>> downloads rates, I observed they are slow than my maximum 500Mbps for
>>>> the line.
>>>> I can reach 320Mbps maximum, but mostly it stays at 280Mbps and the
>>>> Chromium has 30 seconds delays in everything i do.
>>> 
>>> I would make sure it is not some kind of DNS thing, 30 second delays
>>> sounds A LOT
>>> like trying a "dead" resolver 3 times with 10 secs in between, before
>>> moving to a "working" one.
>> 
>> By "delay" I mean the time passed from clicking on some Chromium menu
>> and the actual display of that menu. Even using a tty is slow, login
>> ..... password .... in that disk intense usage period.
>> Tried Debian and FreeBSD, all are able to write disk and do graphics.
>> That ZFS on FreeBSD is mind blowing, I hope it's reliable too.
>> 
>> All I wanted was to compare my hardware and disk speeds with someone
>> running OpenBSD: simple dmesg <-> speed report match, but I think I
>> hit a taboo again.
>> Found some discussions on misc@ about that, no clear answer. I think I
>> will close this thread and see what this ZFS is about :-) .
>> 
>> Thank you all.
>>> 
>>> --
>>> May the most significant bit of your life be positive.
>> 

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