Re: [PATCH V3 0/6] vhost code cleanup and minor enhancement
From: Jason Wang Date: Mon, 2 Sep 2013 16:40:55 +0800 > This series tries to unify and simplify vhost codes especially for > zerocopy. With this series, 5% - 10% improvement for per cpu throughput were > seen during netperf guest sending test. > > Plase review. Applied and patch #5 queued up for -stable, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH V3 0/6] vhost code cleanup and minor enhancement
This series tries to unify and simplify vhost codes especially for zerocopy. With this series, 5% - 10% improvement for per cpu throughput were seen during netperf guest sending test. Plase review. Changes from V2: - Typo fixes and code style fix - Add performance gain in the commit log of patch 2/6 - Retest the update the result in patch 6/6 Changes from V1: - Fix the zerocopy enabling check by changing the check of upend_idx != done_idx to (upend_idx + 1) % UIO_MAXIOV == done_idx. - Switch to use put_user() in __vhost_add_used_n() if there's only one used - Keep the max pending check based on Michael's suggestion. Jason Wang (6): vhost_net: make vhost_zerocopy_signal_used() return void vhost_net: use vhost_add_used_and_signal_n() in vhost_zerocopy_signal_used() vhost: switch to use vhost_add_used_n() vhost_net: determine whether or not to use zerocopy at one time vhost_net: poll vhost queue after marking DMA is done vhost_net: correctly limit the max pending buffers drivers/vhost/net.c | 92 ++-- drivers/vhost/vhost.c | 54 ++-- 2 files changed, 54 insertions(+), 92 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
