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| author | Thomas Huehn <thomas@net.t-labs.tu-berlin.de> | 2015-03-24 21:09:34 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-04-01 11:22:39 +0200 |
| commit | e161f7f6c4143ef0d945e98b2d1032cf82939fb6 (patch) | |
| tree | 889dff3d2010e28236511a0177c5228c1a6e29ea | |
| parent | c37722bd1972118142ee54c0e1a727142d944068 (diff) | |
| download | linux-e161f7f6c4143ef0d945e98b2d1032cf82939fb6.tar.bz2 | |
mac80211: enhance readability of Minstrels rc_stats output
This patch restructures the rc_stats debugfs table of Minstrel in
order to achieve better human readability. A new layout of the
statistics and a new header is added. In addition to the old layout
there are two new columns of information added:
idx - representing the rate index of each rate in mac80211 which
can be used to set specific rates as fixed rate via debugfs
airtime - the tx-time in micro seconds that a 1200 Byte packet
takes to be transmitted over the air at the given rate
The old layout of rc_stats:
rate tpt eprob *prob ret *ok(*cum) ok( cum)
DP 1 0.9 93.5 100.0 1 0( 0) 2( 2)
2 0.4 40.0 100.0 0 0( 0) 4( 10)
5.5 0.0 0.0 0.0 0 0( 0) 0( 0)
...
is changed into this new layout:
best _______rate_____ __statistics__ ________last_______ ______sum-of________
rate [name idx tx-time] [ ø(tp) ø(prob)] [prob.|retry|suc|att] [#success | #attempts]
DP 1 0 9738 0.9 93.5 100.0 1 1 1 2 2
2 1 4922 0.4 40.0 100.0 1 0 0 4 10
5.5 2 1858 0.0 0.0 0.0 2 0 0 0 0
...
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: Stefan Venz <ikstream86@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/rc80211_minstrel_debugfs.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/mac80211/rc80211_minstrel_debugfs.c b/net/mac80211/rc80211_minstrel_debugfs.c index 2acab1bcaa4b..2d70081a77eb 100644 --- a/net/mac80211/rc80211_minstrel_debugfs.c +++ b/net/mac80211/rc80211_minstrel_debugfs.c @@ -68,8 +68,12 @@ minstrel_stats_open(struct inode *inode, struct file *file) file->private_data = ms; p = ms->buf; - p += sprintf(p, "rate tpt eprob *prob" - " *ok(*cum) ok( cum)\n"); + p += sprintf(p, "\n"); + p += sprintf(p, "best _______rate_____ __statistics__ " + "________last_______ ______sum-of________\n"); + p += sprintf(p, "rate [name idx airtime] [ ø(tp) ø(prob)] " + "[prob.|retry|suc|att] [#success | #attempts]\n"); + for (i = 0; i < mi->n_rates; i++) { struct minstrel_rate *mr = &mi->r[i]; struct minstrel_rate_stats *mrs = &mi->r[i].stats; @@ -79,18 +83,22 @@ minstrel_stats_open(struct inode *inode, struct file *file) *(p++) = (i == mi->max_tp_rate[2]) ? 'C' : ' '; *(p++) = (i == mi->max_tp_rate[3]) ? 'D' : ' '; *(p++) = (i == mi->max_prob_rate) ? 'P' : ' '; - p += sprintf(p, "%3u%s", mr->bitrate / 2, + + p += sprintf(p, " %3u%s ", mr->bitrate / 2, (mr->bitrate & 1 ? ".5" : " ")); + p += sprintf(p, "%3u ", i); + p += sprintf(p, "%6u ", mr->perfect_tx_time); tp = MINSTREL_TRUNC(mrs->cur_tp / 10); prob = MINSTREL_TRUNC(mrs->cur_prob * 1000); eprob = MINSTREL_TRUNC(mrs->probability * 1000); - p += sprintf(p, " %4u.%1u %3u.%1u %3u.%1u" - " %4u(%4u) %9llu(%9llu)\n", + p += sprintf(p, " %4u.%1u %3u.%1u %3u.%1u %3u" + " %3u %-3u %9llu %-9llu\n", tp / 10, tp % 10, eprob / 10, eprob % 10, prob / 10, prob % 10, + mrs->retry_count, mrs->last_success, mrs->last_attempts, (unsigned long long)mrs->succ_hist, |