From: Johannes Berg <johannes@sipsolutions.net>
To: Arend van Spriel <arend@broadcom.com>
Cc: Felix Fietkau <nbd@openwrt.org>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: brcmsmac: regression in transmit throughput since 3.19-rc1
Date: Mon, 19 Jan 2015 13:52:27 +0100 [thread overview]
Message-ID: <1421671947.1965.27.camel@sipsolutions.net> (raw)
In-Reply-To: <54BBB46C.8000401@broadcom.com>
Hi Arend,
> On our nightly test setups I found that STA->AP TCP iperf showed a
> regression in brcmsmac after I upgraded them from 3.18-rc5
> wireless-testing (f638577)to 3.19-rc1 wireless-testing (f9e7c6c). The
> attached pictures are historic results showing clear drop on the last run.
>
> Has there been any report on there since 3.19-rc1 and would you have a
> pointer on where to start looking. The changes in brcmsmac look trivial
> so looking at mac80211 now. There are some changes in minstrel and
> brcmsmac is using minstrel_ht rate control.
I haven't heard of anything like that yet. No idea where to look either
- but the drop is significant enough that perhaps you can bisect?
johannes
next prev parent reply other threads:[~2015-01-19 12:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-18 13:26 brcmsmac: regression in transmit throughput since 3.19-rc1 Arend van Spriel
2015-01-19 12:52 ` Johannes Berg [this message]
2015-01-19 15:48 ` Arend van Spriel
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