Hi Jörg, On Thu, Jun 1, 2017 at 3:37 AM, Jörg Krause <joerg.krause@embedded.rocks> 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=y CONFIG_DEBUG_KERNEL=y CONFIG_LOCKUP_DETECTOR=y CONFIG_TIMER_STATS=y -CONFIG_PROVE_LOCKING=y CONFIG_BLK_DEV_IO_TRACE=y CONFIG_STRICT_DEVMEM=y CONFIG_DEBUG_USER=y
