From: Lonnie Abelbeck <lists@lonnie.abelbeck.com>
To: WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: [ANNOUNCE] WireGuard Snapshot `0.0.20180620` Available
Date: Wed, 20 Jun 2018 19:22:20 -0500 [thread overview]
Message-ID: <3052A12F-768F-4E3B-AF68-77CB34D58D98@lonnie.abelbeck.com> (raw)
In-Reply-To: <CAHmME9oP5tPNbyYECJN4wgcPc4zg3QE9n2edx_TQQmn5tCbWjA@mail.gmail.com>
> On Jun 20, 2018, at 6:47 PM, Jason A. Donenfeld <Jason@zx2c4.com> =
wrote:
>=20
> Hey Lonnie,
>=20
> Thanks for helping to debug this.
>=20
> On Thu, Jun 21, 2018 at 12:37 AM Lonnie Abelbeck
> <lists@lonnie.abelbeck.com> wrote:
>> Hunk #1 only does the trick, though performance is ever so slightly =
slower than before overall.
>=20
> It's good to hear that hunks #2 and #3 don't have much an effect,
> though it does still seem to have _some_ effect.
>=20
> Looks like hunk 1 is rather worrisome though. Can you try out
> https://=D7=90.cc/eaxxpxbB and let me know if it has any effect?
That patch, as is, is very bad
--
[SUM] 0.00-30.00 sec 1.26 GBytes 360 Mbits/sec 98 =
sender
[SUM] 0.00-30.03 sec 1.25 GBytes 358 Mbits/sec =
receiver
I then edited the patch to add back in local_bh_disable() / =
local_bh_enable(), much better
--
[SUM] 0.00-30.00 sec 2.62 GBytes 751 Mbits/sec 1389 =
sender
[SUM] 0.00-30.00 sec 2.61 GBytes 748 Mbits/sec =
receiver
essentially back to 0.0.20180531 performance, hunk #1 from previous =
patch and hunk #1 from the latest patch.
> Are you sure
> the benchmark conditions were the same in other respects?
Yes, quite sure, but there is some variation of the iperf3 results on =
each run ... I perform a few runs and then pick a median sample.
Lonnie
next prev parent reply other threads:[~2018-06-21 0:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-20 19:19 Jason A. Donenfeld
2018-06-20 20:11 ` Lonnie Abelbeck
2018-06-20 20:33 ` Matthias Urlichs
2018-06-20 21:24 ` Jason A. Donenfeld
2018-06-20 22:37 ` Lonnie Abelbeck
2018-06-20 23:47 ` Jason A. Donenfeld
2018-06-21 0:22 ` Lonnie Abelbeck [this message]
2018-06-21 13:51 ` Lonnie Abelbeck
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