From: Dave Taht <dave.taht@gmail.com>
To: Cake List <cake@lists.bufferbloat.net>
Subject: [Cake] cake on linux 5.6 32 bit x86 might be broken
Date: Sat, 25 Apr 2020 12:09:49 -0700 [thread overview]
Message-ID: <CAA93jw5DDgG4Csjd8B7YfOUMnsH5FYiAfd=gNNCOYD2-sGt9Dg@mail.gmail.com> (raw)
In-Reply-To: <20200424195745.72d725bd@rellim.com>
the bandwidth parameter is mis-parsed. this is stock kernel, stock 5.6 iproute2
looks like an alignment bug. Anyone running x86 on 32 bit? anyone
running this kernel on anything 32bit?
is 5.4 ok?
---------- Forwarded message ---------
From: elided
Date: Fri, Apr 24, 2020 at 7:57 PM
Subject: Re: PSA pt 1: for better videoconferencing at home on slow links
To: Dave Taht <dave.taht@gmail.com>
Yo Dave!
One step forward, two back.
Linux kernel 5.6.7.
~# tc -V
tc utility, iproute2-ss200330
This started cake:
~# tc qdisc add dev eth1 root cake bandwidth 160mbps
But, my score of B for bufferbloat fell to a C!
http://www.dslreports.com/speedtest/62801576
cake seems to be ignoring my bandwidth:
catbert:~# tc -s qdisc show dev eth1
qdisc cake 8005: root refcnt 2 bandwidth 1280Mbit diffserv3
triple-isolate nonat nowash no-ack-filter split-gso rtt 100.0ms raw
overhead 0
Sent 591223311 bytes 562082 pkt (dropped 0, overlimits 666624 requeues 0)
backlog 0b 0p requeues 0
memory used: 377936b of 15140Kb
capacity estimate: 1280Mbit
min/max network layer size: 42 / 1514
min/max overhead-adjusted size: 42 / 1514
average network hdr offset: 14
Bulk Best Effort Voice
thresh 80Mbit 1280Mbit 320Mbit
target 5.0ms 5.0ms 5.0ms
interval 100.0ms 100.0ms 100.0ms
pk_delay 0us 8us 6us
av_delay 0us 3us 3us
sp_delay 0us 1us 1us
backlog 0b 0b 0b
pkts 0 447439 114643
bytes 0 580864114 10359197
way_inds 0 42159 2526
way_miss 0 3931 87597
way_cols 0 11 0
drops 0 0 0
marks 0 0 0
ack_drop 0 0 0
sp_flows 0 247 46
bk_flows 0 1 0
un_flows 0 0 0
max_len 0 36144 998
quantum 1514 1514 1514
Back to reading...
next parent reply other threads:[~2020-04-25 19:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAA93jw71YdABJPeRkFDrzLGY2PtWy-zqaLoGrnFWuFhOPz48xg@mail.gmail.com>
[not found] ` <20200424120317.4d3d3e98@rellim.com>
[not found] ` <20200424120423.1f57def6@rellim.com>
[not found] ` <CAA93jw7e6k4sxh2+5H-dSBmdUkA53=VxJu7FmTdrSKTsbP0rWg@mail.gmail.com>
[not found] ` <20200424121344.2bc8e62c@rellim.com>
[not found] ` <CAA93jw5i7ccwc3VwSKiNk9XL-FXHgwznxzCHUDytpHFDsNGfoA@mail.gmail.com>
[not found] ` <20200424123005.64aef3bf@rellim.com>
[not found] ` <CAA93jw5xygaNsqYb9z9cF00TpH=8cOSDzFGZJxrDW-SkQFey4g@mail.gmail.com>
[not found] ` <20200424195745.72d725bd@rellim.com>
2020-04-25 19:09 ` Dave Taht [this message]
2020-04-25 19:19 ` Y
2020-04-25 19:59 ` Jonathan Morton
2020-04-25 20:05 ` Dave Taht
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