diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2014-12-17 13:38:34 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-12-19 21:34:22 +0100 |
| commit | 8d819a92cc7fef4294dd11faa60050fd3c5460e0 (patch) | |
| tree | e03e57c24526321164eae39d8e89dc43c7228b96 /net/mac80211/rc80211_minstrel.h | |
| parent | nl80211: increase the max number of rules in regdomain (diff) | |
| download | linux-8d819a92cc7fef4294dd11faa60050fd3c5460e0.tar.xz linux-8d819a92cc7fef4294dd11faa60050fd3c5460e0.zip | |
mac80211: minstrel: reduce size of struct minstrel_rate_stats
On minstrel_ht, the size of the per-sta struct is almost 18k, making it
an order-3 allocation.
A few fields inside the per-rate statistics are bigger than they need to
be. This patch reduces the size enough to cut down the per-sta struct to
about 13k (order-2 allocation).
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel.h')
| -rw-r--r-- | net/mac80211/rc80211_minstrel.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h index 97eca86a4af0..410efe620c57 100644 --- a/net/mac80211/rc80211_minstrel.h +++ b/net/mac80211/rc80211_minstrel.h @@ -33,8 +33,8 @@ minstrel_ewma(int old, int new, int weight) struct minstrel_rate_stats { /* current / last sampling period attempts/success counters */ - unsigned int attempts, last_attempts; - unsigned int success, last_success; + u16 attempts, last_attempts; + u16 success, last_success; /* total attempts/success counters */ u64 att_hist, succ_hist; @@ -46,8 +46,8 @@ struct minstrel_rate_stats { unsigned int cur_prob, probability; /* maximum retry counts */ - unsigned int retry_count; - unsigned int retry_count_rtscts; + u8 retry_count; + u8 retry_count_rtscts; u8 sample_skipped; bool retry_updated; @@ -55,14 +55,15 @@ struct minstrel_rate_stats { struct minstrel_rate { int bitrate; - int rix; + + s8 rix; + u8 retry_count_cts; + u8 adjusted_retry_count; unsigned int perfect_tx_time; unsigned int ack_time; int sample_limit; - unsigned int retry_count_cts; - unsigned int adjusted_retry_count; struct minstrel_rate_stats stats; }; |