Re: [PATCH 1/2] mac80211/minstrel_ht: increase sampling frequency of some slower rates

[Felix Fietkau <nbd@openwrt.org>]

On 2013-03-05 1:08 PM, Georgiewskiy Yuriy wrote:
> On 2013-03-05 12:49 +0100, Felix Fietkau wrote Georgiewskiy Yuriy:
> 
> FF>On 2013-03-05 11:35 AM, Georgiewskiy Yuriy wrote:
> FF>> On 2013-03-03 12:49 +0100, Felix Fietkau wrote linux-wireless@vger.kernel.org:
> FF>> 
> FF>> Hi, in my case this two patches cause throughput drop, withous it i have 50-55Mbs
> FF>> with it applied only 35-40.
> FF>Please show me the rate control statistics from debugfs.
> 
> in attachment
Please test if this patch helps:
---
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -480,7 +480,7 @@ minstrel_ht_tx_status(void *priv, struct
 
 	if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
 		mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
-		mi->sample_tries = 2;
+		mi->sample_tries = 1;
 		mi->sample_count--;
 	}