nanog mailing list archives
Re: Apple Catalina Appears to Introduce Massive Jitter
From: Mark Tinka <mark.tinka () seacom com>
Date: Thu, 29 Oct 2020 17:50:29 +0200
On 10/29/20 16:08, J. Hellenthal wrote:
I believe I have seen the same thing with a Mid 2015 11,4 running catalina. Not diagnosing further because I could not find a reason for it fast enough and not sure if it really had an impact at the moment…. but could you try the following sudo sysctl net.link.generic.system.hwcksum_tx=0 sudo sysctl net.link.generic.system.hwcksum_rx=0 sudo ifconfig en0 -rxcsum
Thanks, I'll have a sniff.
If you have some specific tests to run I would be willing to run them here on Big Sur with the same laptop but I have nothing now that runs Catalina
One of my mates found the same issue on Big Sur (beta) on a 2013 MacBook Pro.
Just a simple mtr test to your local home router's IP address should, over wi-fi, should show you the jitter.
Mark.
Current thread:
- Re: Apple Catalina Appears to Introduce Massive Jitter, (continued)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mike Hammett (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Jared Mauch (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Cory Sell via NANOG (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter J. Hellenthal via NANOG (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter J. Hellenthal via NANOG (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Niels Bakker (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter David Curado (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! Mark Tinka (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! Doug Barton (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! J. Hellenthal via NANOG (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! Mark Tinka (Oct 31)
- Re: Apple Catalina Appears to Introduce Massive Jitter Mark Tinka (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! Mark Tinka (Oct 31)
- Re: Apple Catalina Appears to Introduce Massive Jitter - SOLVED! Aaron Atac via NANOG (Oct 30)
- Re: Apple Catalina Appears to Introduce Massive Jitter colin johnston (Oct 29)
- Re: Apple Catalina Appears to Introduce Massive Jitter colin johnston (Oct 29)