Re: disk i/o test
> On Mar 7, 2022, at 12:10 PM, Brian Brombacher 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%. I was helped off-list with this information, there is a memory threshold on amd64 that affects the behavior of the sysctl. If you have more than 4 gb of memory, the sysctl isn’t important. > > -Brian > >>> On Mar 7, 2022, at 6:17 AM, Mihai Popescu wrote: >>> >>> On Mon, Mar 7, 2022 at 8:46 AM Janne Johansson wrote: >>> >>> Den sön 6 mars 2022 kl 16:41 skrev Mihai Popescu : 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. >> >
Re: disk i/o test
Correction: kern.bufcachepercentage=90 > On Mar 7, 2022, at 12:07 PM, Brian Brombacher 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 wrote: >>> >>> On Mon, Mar 7, 2022 at 8:46 AM Janne Johansson wrote: >>> >>> Den sön 6 mars 2022 kl 16:41 skrev Mihai Popescu : 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. >>
Re: disk i/o test
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 wrote: > > On Mon, Mar 7, 2022 at 8:46 AM Janne Johansson wrote: >> >> Den sön 6 mars 2022 kl 16:41 skrev Mihai Popescu : >>> >>> 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. >
Re: disk i/o test
On Mon, Mar 7, 2022 at 8:46 AM Janne Johansson wrote: > > Den sön 6 mars 2022 kl 16:41 skrev Mihai Popescu : > > > > 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.
Re: Driver support for Marvell Amethyst (on MikroTik RB5009UG+S+IN)
On 2022-03-07, Alex Waite wrote: > Hello Everyone, > > I will purchase a new home router soon, and hope to consolidate my ancient > switch into it as well. > > Has anyone here had success running OpenBSD on the MikroTik RB5009UG+S+IN? [1] > > It's ARM8 64-bit, so I expect OpenBSD to install and run, but the networking > I am unsure about (Marvell Amethyst 88E6393X). [2] > > I have not found any information about OpenBSD support for the Marvell > Amethyst series, so I fear that it is not (yet) supported. Can anyone confirm > one way or the other, or speak to the likelihood that support will be added? > > ---Alex > > [1] https://mikrotik.com/product/rb5009ug_s_in > [2] https://i.mt.lv/cdn/product_files/RB5009UGS_210729.png OpenBSD doesn't currently run on any MikroTik routers other than old versions on the old powerpc RB600A. https://www.openbsd.org/socppc.html OpenBSD does support boards with the same SoC family (Armada 7/8k; rb5009 has Armada 7k) but MikroTik uses a proprietary bootloader. If someone wanted to look into what's needed to make them work, there is an OpenWRT version that should run on these now, which may help: https://github.com/adron-s/openwrt-rb5009 88E6393X is the switch chip; it might be similar to those supported by mvsw(4) but OpenBSD has no framework for controlling how enbedded switches are configured; all it does is bridge all ports together. -- Please keep replies on the mailing list.
Driver support for Marvell Amethyst (on MikroTik RB5009UG+S+IN)
Hello Everyone, I will purchase a new home router soon, and hope to consolidate my ancient switch into it as well. Has anyone here had success running OpenBSD on the MikroTik RB5009UG+S+IN? [1] It's ARM8 64-bit, so I expect OpenBSD to install and run, but the networking I am unsure about (Marvell Amethyst 88E6393X). [2] I have not found any information about OpenBSD support for the Marvell Amethyst series, so I fear that it is not (yet) supported. Can anyone confirm one way or the other, or speak to the likelihood that support will be added? ---Alex [1] https://mikrotik.com/product/rb5009ug_s_in [2] https://i.mt.lv/cdn/product_files/RB5009UGS_210729.png
