Cake - FQ_codel the next generation
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From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: cake@lists.bufferbloat.net
Subject: Re: [Cake] [PATCH net] sch_cake: Take advantage of skb->hash where appropriate
Date: Fri, 29 May 2020 15:02:03 +0200	[thread overview]
Message-ID: <871rn228tw.fsf@toke.dk> (raw)
In-Reply-To: <20200529124344.355785-1-toke@redhat.com>

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> The immediate motivation for fixing this was the recent patch to WireGuard
> to preserve the skb->hash on encapsulation. As such, this is also what I
> tested against; with this patch, added latency under load for competing
> flows drops from ~8 ms to sub-1ms on an RRUL test over a WireGuard tunnel
> going through a virtual link shaped to 1Gbps using sch_cake. This matches
> the results we saw with a similar setup using sch_fq_codel when testing the
> WireGuard patch.

See attached Flent data files for the full results (dropping netdev@ for
these).

-Toke


[-- Attachment #2: rrul-2020-05-29T125220.474228.cake_no-patch_wg_patched.flent.gz --]
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[-- Attachment #3: rrul-2020-05-29T140517.282425.cake_patch_wg_patched.flent.gz --]
[-- Type: application/gzip, Size: 102927 bytes --]

[-- Attachment #4: rtt_fair_var-2020-05-29T134324.452771.cake_no-patch_wg_patched_nonat.flent.gz --]
[-- Type: application/gzip, Size: 82092 bytes --]

[-- Attachment #5: rtt_fair_var-2020-05-29T135038.694646.cake_no-patch_wg_patched_nonat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 82338 bytes --]

[-- Attachment #6: rtt_fair_var-2020-05-29T135627.430220.cake_no-patch_wg_patched_nonat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 100479 bytes --]

[-- Attachment #7: rtt_fair_var-2020-05-29T135809.540527.cake_no-patch_wg_patched_nat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 101197 bytes --]

[-- Attachment #8: rtt_fair_var-2020-05-29T140711.738176.cake_patch_wg_patched_nonat.flent.gz --]
[-- Type: application/gzip, Size: 80263 bytes --]

[-- Attachment #9: rtt_fair_var-2020-05-29T141034.197074.cake_patch_wg_patched_nonat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 98289 bytes --]

[-- Attachment #10: rtt_fair_var-2020-05-29T141217.145841.cake_patch_wg_patched_nat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 98860 bytes --]

[-- Attachment #11: rtt_fair_var-2020-05-29T141551.629034.cake_patch_wg_patched_nat_dual-srchost.flent.gz --]
[-- Type: application/gzip, Size: 115860 bytes --]

[-- Attachment #12: tcp_nup-2020-05-29T123116.704500.cake_no-patch_wg_patch.flent.gz --]
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[-- Attachment #13: tcp_nup-2020-05-29T140336.810381.cake_patch_wg_patch.flent.gz --]
[-- Type: application/gzip, Size: 353354 bytes --]

  reply	other threads:[~2020-05-29 13:02 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29 12:43 Toke Høiland-Jørgensen
2020-05-29 13:02 ` Toke Høiland-Jørgensen [this message]
2020-05-29 17:57 ` Jakub Kicinski
2020-05-29 18:31   ` Toke Høiland-Jørgensen
2020-05-31  4:52 ` David Miller

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