From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mihai Moldovan Date: Mon, 15 Jul 2013 05:29:30 +0200 Subject: [ath9k-devel] AR9280 DFS -- high latency Message-ID: <51E36C9A.1060200@ionic.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Hi, I booted up a brand new 3.10.1 kernel with DFS support enabled and obviously in use. This AR9280 card is in AP mode on channel 40 (5GHz) with 802.11n/HT on (HT40-). However, this boosts up latency to 50 - 90ms on average in pretty much idle mode (100KB/s traffic), spiking up to several hundred ms to one second at times. Maximum throughput is about 8 MBit/s with DFS, too. Turning DFS off yields 0.x to 1ms latency and about 45 MBit/s throughput. Is DFS still very experimental and that's the price for turning it on and constant scanning, or does it rather sound like a bug? Best regards, Mihai -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 4506 bytes Desc: S/MIME Cryptographic Signature Url : http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20130715/483ee826/attachment.bin