Re: brcmfmac experiment for a specific use case - tx throughput maximization for slow CPU with glomming
From: Fabio Estevam <festevam@gmail.com>
Date: 2017-08-18 11:50:39
Hi J=C3=B6rg, On Thu, Jun 1, 2017 at 3:37 AM, J=C3=B6rg Krause <joerg.krause@embedded.roc= ks> wrote:
I'm experiencing low throughput with a BCM43362 wifi chip attached via SDIO to an i.MX28 [1,2]. After disabling some Kernel debug features I'm getting now a TCP throughput of 12.5 Mbps for the wifi interface, which is still below the throughput I get for the Cubietruck.
Does it help if you disable CONFIG_PROVE_LOCKING?
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig@@ -175,7 +175,6 @@ CONFIG_MAGIC_SYSRQ=3Dy CONFIG_DEBUG_KERNEL=3Dy CONFIG_LOCKUP_DETECTOR=3Dy CONFIG_TIMER_STATS=3Dy -CONFIG_PROVE_LOCKING=3Dy CONFIG_BLK_DEV_IO_TRACE=3Dy CONFIG_STRICT_DEVMEM=3Dy CONFIG_DEBUG_USER=3Dy