NOTES
This episode of BSDNow is brought to you by Tarsnap and the BSDNow Patreon

Headlines

AsiaBSDCon 2023 Trip Report

Converting My X201 ThinkPad into a Slabtop

News Roundup

Stream your OpenBSD desktop audio to other devices

The Gnome and Its "Secret Place"

ttyload - Linux/Unix color-coded graphical tracking tool for load average in a terminal

Beastie Bits

• [OpenIndiana with a Sun Microsystems 22" LCD monitor. Running on a 1.8GHz quad core AMD Phenom 9100e processor, 4Gb RAM, nVidia GEForce GT630.](https://www.reddit.com/r/unix/comments/13otjnt/openindiana_with_a_sun_microsystems_22_lcd/)
• [cron(8) now supports random ranges with steps](https://www.undeadly.org/cgi?action=article;sid=20230507122935&utm_source=bsdweekly)
• [BSDCan 2024 Reorganization](https://mwl.io/archives/22799)
• [Depenguin me](https://depenguin.me/)

Tarsnap

• This weeks episode of BSDNow was sponsored by our friends at Tarsnap, the only secure online backup you can trust your data to. Even paranoids need backups.

• Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv

NOTES
This episode of BSDNow is brought to you by Tarsnap and the BSDNow Patreon

Headlines

Differences between base and ports LLVM in OpenBSD

Using Netgraph for FreeBSD’s bhyve Networking

News Roundup

Audio on FreeBSD – Quick Guide

[Legends start at 1.0! – FreeBSD in 1993]

• Part 1
• Part 2 *** ### Hacker News running by FreeBSD. Take that, Linux! *** ### TrueNAS 13 ***

Beastie Bits

• Notable OpenBSD news you may have missed, 2022-06-28 edition
• rEFInd design for all the BSDs
• OpenBGPD 7.4 released
• Hotfix GhostBSD 22.06.18 ISO is now available *** ###Tarsnap
• This weeks episode of BSDNow was sponsored by our friends at Tarsnap, the only secure online backup you can trust your data to. Even paranoids need backups.

Feedback/Questions

• Brad - Jails Question

• Freezr - A few questions

• A different Brad - Drive question

• Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv ***

NOTES
This episode of BSDNow is brought to you by Tarsnap

Headlines

FreeBSD USB Audio

I recently got a Behringer UMC22 sound card for video conferencing and DJing. This page documents what I’ve learned about using this sound card, and USB audio in general, on FreeBSD.
tl;dr: Everything works as long as the sound card follows the USB audio device class specification.

---

Kyua: An introduction for NetBSD users

Kyua's current goal is to reimplement only the ATF tools while maintaining backwards compatibility with the tests written with the ATF libraries (i.e. with the NetBSD test suite).
Because Kyua is a replacement of some ATF components, the end goal is to integrate Kyua into the NetBSD base system (just as ATF is) and remove the deprecated ATF components. Removing the deprecated components will allow us to make the above-mentioned improvements to Kyua, as well as many others, without having to deal with the obsolete ATF code base. Discussing how and when this transition might happen is out of the scope of this document at the moment.

---

News Roundup

Keeping backup ZFS on Linux kernel modules around

I'm a long term user of ZFS on Linux and over pretty much all of the time I've used it, I've built it from the latest development version. Generally this means I update my ZoL build at the same time as I update my Fedora kernel, since a ZoL update requires a kernel reboot anyway. This is a little bit daring, of course, although the ZoL development version has generally been quite solid (and this way I get the latest features and improvements long before I otherwise would).

---

Command-line Tools can be 235x Faster than your Hadoop Cluster

As I was browsing the web and catching up on some sites I visit periodically, I found a cool article from Tom Hayden about using Amazon Elastic Map Reduce (EMR) and mrjob in order to compute some statistics on win/loss ratios for chess games he downloaded from the millionbase archive, and generally have fun with EMR. Since the data volume was only about 1.75GB containing around 2 million chess games, I was skeptical of using Hadoop for the task, but I can understand his goal of learning and having fun with mrjob and EMR. Since the problem is basically just to look at the result lines of each file and aggregate the different results, it seems ideally suited to stream processing with shell commands. I tried this out, and for the same amount of data I was able to use my laptop to get the results in about 12 seconds (processing speed of about 270MB/sec), while the Hadoop processing took about 26 minutes (processing speed of about 1.14MB/sec).

FreeBSD Laptop Find Out Battery Life Status Command

I know how to find out battery life status using Linux operating system. How do I monitor battery status on a laptop running FreeBSD version 9.x/10.x/11.x/12.x?
You can use any one of the following commands to get battery status under FreeBSD laptop including remaining battery life and more.

---

Beastie Bits

BSD Beer
Awk for JSON
Drawing Pictures The Unix Way - with pic and troff
Refactoring the FreeBSD Kernel with Checked C

Tarsnap

• This weeks episode of BSDNow was sponsored by our friends at Tarsnap, the only secure online backup you can trust your data to. Even paranoids need backups.

Feedback/Questions

• Jason - German Locales
• pcwizz - Router Style Device
• predrag - OpenBSD Router Hardware ***
• Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv ***

Headlines

OPNsense 19.7.1

We do not wish to keep you from enjoying your summer time, but this
is a recommended security update enriched with reliability fixes for the
new 19.7 series. Of special note are performance improvements as well
as a fix for a longstanding NAT before IPsec limitation.

Full patch notes:

• system: do not create automatic copies of existing gateways
• system: do not translate empty tunables descriptions
• system: remove unwanted form action tags
• system: do not include Syslog-ng in rc.freebsd handler
• system: fix manual system log stop/start/restart
• system: scoped IPv6 "%" could confuse mwexecf(), use plain mwexec() instead
• system: allow curl-based downloads to use both trusted and local authorities
• system: fix group privilege print and correctly redirect after edit
• system: use cached address list in referrer check
• system: fix Syslog-ng search stats
• firewall: HTML-escape dynamic entries to display aliases
• firewall: display correct IP version in automatic rules
• firewall: fix a warning while reading empty outbound rules configuration
• firewall: skip illegal log lines in live log
• interfaces: performance improvements for configurations with hundreds of interfaces
• reporting: performance improvements for Python 3 NetFlow aggregator rewrite
• dhcp: move advanced router advertisement options to correct config section
• ipsec: replace global array access with function to ensure side-effect free boot
• ipsec: change DPD action on start to "dpdaction = restart"
• ipsec: remove already default "dpdaction = none" if not set
• ipsec: use interface IP address in local ID when doing NAT before IPsec
• web proxy: fix database reset for Squid 4 by replacing use of ssl_crtd with security_file_certgen
• plugins: os-acme-client 1.24[1]
• plugins: os-bind 1.6[2]
• plugins: os-dnscrypt-proxy 1.5[3]
• plugins: os-frr now restricts characters BGP prefix-list and route-maps[4]
• plugins: os-google-cloud-sdk 1.0[5]
• ports: curl 7.65.3[6]
• ports: monit 5.26.0[7]
• ports: openssh 8.0p1[8]
• ports: php 7.2.20[9]
• ports: python 3.7.4[10]
• ports: sqlite 3.29.0[11]
• ports: squid 4.8[12]

Stay safe and hydrated, Your OPNsense team

ZFS on Linux still has annoying issues with ARC size

One of the frustrating things about operating ZFS on Linux is that the ARC size is critical but ZFS's auto-tuning of it is opaque and apparently prone to malfunctions, where your ARC will mysteriously shrink drastically and then stick there.

Linux's regular filesystem disk cache is very predictable; if you do disk IO, the cache will relentlessly grow to use all of your free memory. This sometimes disconcerts people when free reports that there's very little memory actually free, but at least you're getting value from your RAM. This is so reliable and regular that we generally don't think about 'is my system going to use all of my RAM as a disk cache', because the answer is always 'yes'. (The general filesystem cache is also called the page cache.)

This is unfortunately not the case with the ZFS ARC in ZFS on Linux (and it wasn't necessarily the case even on Solaris). ZFS has both a current size and a 'target size' for the ARC (called 'c' in ZFS statistics). When your system boots this target size starts out as the maximum allowed size for the ARC, but various events afterward can cause it to be reduced (which obviously limits the size of your ARC, since that's its purpose). In practice, this reduction in the target size is both pretty sticky and rather mysterious (as ZFS on Linux doesn't currently expose enough statistics to tell why your ARC target size shrunk in any particular case).

The net effect is that the ZFS ARC is not infrequently quite shy and hesitant about using memory, in stark contrast to Linux's normal filesystem cache. The default maximum ARC size starts out as only half of your RAM (unlike the regular filesystem cache, which will use all of it), and then it shrinks from there, sometimes very significantly, and once shrunk it only recovers slowly (if at all).

News Roundup

Hammer2 is now default

commit a49112761c919d42d405ec10252eb0553662c824
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Jun 10 17:53:46 2019 -0700

    installer - Default to HAMMER2

    * Change the installer default from HAMMER1 to HAMMER2.

    * Adjust the nrelease build to print the location of the image files
      when it finishes.

Summary of changes:
 nrelease/Makefile                          |  2 +-
 usr.sbin/installer/dfuibe_installer/flow.c | 20 ++++++++++----------
 2 files changed, 11 insertions(+), 11 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a49112761c919d42d405ec10252eb0553662c824

NetBSD audio – an application perspective

NetBSD audio – an application perspective ... or, "doing it natively, because we can"

• audio options for NetBSD in pkgsrc

  • Use NetBSD native audio (sun audio/audioio.h)
  • Or OSS emulation layer: Basically a wrapper around sun audio in the kernel. Incomplete and old version, but works for simple stuff

• Many many abstraction layers available:

  • OpenAL-Soft
  • alsa-lib (config file required)
  • libao, GStreamer (plugins!)
  • PortAudio, SDL
  • PulseAudio, JACK
  • ... lots more!? some obsolete stuff (esd, nas?)

• Advantages of using NetBSD audio directly

  • Low latency, low CPU usage: Abstraction layers differ in latency (SDL2 vs ALSA/OpenAL)
  • Query device information: Is /dev/audio1 a USB microphone or another sound card?
  • Avoid bugs from excessive layering
  • Nice API, well documented: [nia note: I had no idea how to write audio code. I read a man page and now I do.]
  • Your code might work on illumos too

• [nia note: SDL2 seems very sensitive to the blk_ms sysctl being high or low, with other implementations there seems to be a less noticable difference. I don't know why.]

New FreeNAS Mini

Two new FreeNAS Mini systems join the very popular FreeNAS Mini and Mini XL:

FreeNAS Mini XL+: This powerful 10 Bay platform (8x 3.5” and 1x 2.5” hot-swap, 1x 2.5” internal) includes the latest, compact server technology and provides dual 10GbE ports, 8 CPU cores and 32 GB RAM for high performance workgroups. The Mini XL+ scales beyond 100TB and is ideal for very demanding applications, including hosting virtual machines and multimedia editing. Starting at $1499, the Mini XL+ configured with cache SSD and 80 TB capacity is $4299, and consumes about 100 Watts.

FreeNAS Mini E: This cost-effective 4 Bay platform provides the resources required for SOHO use with quad GbE ports and 8 GB of RAM. The Mini E is ideal for file sharing, streaming and transcoding video at 1080p. Starting at $749, the Mini E configured with 8 TB capacity is $999, and consumes about 36 Watts.

Beastie Bits

• Welcome to NetBSD 9.99.1!
• Berkeley smorgasbord — part II
• dtracing postgres
• Project Trident 19.07-U1 now available
• Need a Secure Operating System? Take a Look at OpenBSD

Feedback/Questions

• Jeff - OpenZFS Port Testing Feedback
• Malcolm - Best Practices for Custom Ports
• Michael - Little Correction

• Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv