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Re: [RFC v1] mac80211: Add support for per station rx stats histogram

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Hi Johannes and all,

kindly share your thoughts regarding the draft change
(I can share the test results as well and sample dump).

This is an implementation of Rx statistics (histogram
for each of the clients connected under mac80211 station
debugfs).

Attached is a sample dump, tested in Openwrt distribution

regards,
shafi


On Mon, Mar 07, 2016 at 09:53:29PM +0530, Mohammed Shafi Shajakhan wrote:
> From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
> 
> Enable a provision in mac80211 'MAC80211_DEBUG_PER_STA_RX_STATS'
> to keep track and dump per station stats.
> 
> Dump rx pkts / bytes per {MCS, BW, NSS, GI} per station
> in histogram format. Rx stats provides a history
> of the receive stats of the stations connected to us.
> Information such as how consistently we received the packet
> in higher MCS index / Bandwidth is very useful to assess the
> performance of us(AP) and the connected clients
> 
> By default this feature is disabled though there is no impact
> in performance (based on our test results)
> 
> This change is based on the design of Yanbo Li and HT packet
> rate table fix by Anil
> 
> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
> Signed-off-by: Anilkumar Kolli <akolli@xxxxxxxxxxxxxxxx>
> ---
>  net/mac80211/Kconfig       |   12 +++
>  net/mac80211/debugfs_sta.c |  225 ++++++++++++++++++++++++++++++++++++++++++++
>  net/mac80211/debugfs_sta.h |    5 +
>  net/mac80211/rx.c          |    2 +
>  net/mac80211/sta_info.h    |   23 +++++
>  5 files changed, 267 insertions(+)
> 
> diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
> index 3891cbd..89fb17c 100644
> --- a/net/mac80211/Kconfig
> +++ b/net/mac80211/Kconfig
> @@ -309,6 +309,18 @@ config MAC80211_DEBUG_COUNTERS
>  
>  	  If unsure, say N.
>  
> +config MAC80211_DEBUG_PER_STA_RX_STATS
> +	bool "Per Station Receive Stats Histogram"
> +	depends on MAC80211_DEBUG_MENU
> +	depends on MAC80211_DEBUGFS
> +	---help---
> +	  Selecting this option causes mac80211 to keep track of
> +	  per station received packets, classify them based
> +	  on Bandwidth, Rate index (legacy, HT, VHT) and dump
> +	  a histogram of the same
> +
> +	  If unsure, say N.
> +
>  config MAC80211_STA_HASH_MAX_SIZE
>  	int "Station hash table maximum size" if MAC80211_DEBUG_MENU
>  	default 0
> diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
> index a39512f..ed095f3 100644
> --- a/net/mac80211/debugfs_sta.c
> +++ b/net/mac80211/debugfs_sta.c
> @@ -289,6 +289,130 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
>  }
>  STA_OPS(ht_capa);
>  
> +static ssize_t sta_rx_stats_read(struct file *file, char __user *userbuf,
> +				 size_t count, loff_t *ppos)
> +{
> +#ifdef CONFIG_MAC80211_DEBUG_PER_STA_RX_STATS
> +#define RX_STATS_HIST_FMT(n) \
> +	do { \
> +		if ((i + 1) % n == 0) \
> +			len += scnprintf(buf + len, size - len, "\n\t\t"); \
> +	} while (0)
> +	int retval = 0, len = 0;
> +	char *buf;
> +	const int size = 3072;
> +	struct sta_info *sta = file->private_data;
> +	struct ieee80211_local *local = sta->local;
> +	int i;
> +	char *bw_str[IEEE80211_BW_NUM] = {"20", "40", "80", "160"};
> +	char *nss_str[IEEE80211_NSS_NUM] = {"1x1", "2x2", "3x3", "4x4"};
> +	char *gi_str[IEEE80211_GI_NUM] = {"LGI", "SGI"};
> +	char *legacy_str[IEEE80211_LEGACY_RATE_NUM] = {"1", "2", "5.5",
> +						       "11", "6", "9",
> +						       "12", "18", "24",
> +						       "36", "48", "54"};
> +	buf = kzalloc(size, GFP_KERNEL);
> +	if (!buf)
> +		return -ENOMEM;
> +
> +	len += scnprintf(buf + len, size - len, "VHT MCS packets: ");
> +	for (i = 0; i < IEEE80211_VHT_MCS_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "MCS %d: %llu, ",
> +				 i, sta->rx_vht_pkt[i]);
> +		RX_STATS_HIST_FMT(5);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\nHT MCS packets: ");
> +	for (i = 0; i < IEEE80211_HT_MCS_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "MCS %d: %llu, ",
> +				 i, sta->rx_ht_pkt[i]);
> +		RX_STATS_HIST_FMT(5);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\n\nBW packets: ");
> +	for (i = 0; i < IEEE80211_BW_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%sMhz: %llu",
> +				 bw_str[i], sta->rx_bw_pkt[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nNSS packets: ");
> +	for (i = 0; i < IEEE80211_NSS_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%s: %llu",
> +				 nss_str[i], sta->rx_nss_pkt[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nGI packets: ");
> +	for (i = 0; i < IEEE80211_GI_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%s: %llu",
> +				 gi_str[i], sta->rx_gi_pkt[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nLegacy rate packets: ");
> +	for (i = 0; i < IEEE80211_LEGACY_RATE_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "\t%sMbps: %llu",
> +				 legacy_str[i], sta->rx_legacy_pkt[i]);
> +		RX_STATS_HIST_FMT(4);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\nRate table packets:  ");
> +	for (i = 0; i < IEEE80211_RATE_TABLE_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "\t%llu",
> +				 sta->rx_rate_pkt[i]);
> +		RX_STATS_HIST_FMT(8);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\nVHT MCS bytes: ");
> +	for (i = 0; i < IEEE80211_VHT_MCS_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "MCS %d: %llu, ",
> +				 i, sta->rx_vht_byte[i]);
> +		RX_STATS_HIST_FMT(5);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\nHT MCS bytes: ");
> +	for (i = 0; i < IEEE80211_HT_MCS_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "MCS %d: %llu, ",
> +				 i, sta->rx_ht_byte[i]);
> +		RX_STATS_HIST_FMT(5);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\n\nNSS bytes: ");
> +	for (i = 0; i < IEEE80211_NSS_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%s: %llu",
> +				 nss_str[i], sta->rx_nss_byte[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nBW bytes: ");
> +	for (i = 0; i < IEEE80211_BW_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%sMhz: %llu",
> +				 bw_str[i], sta->rx_bw_byte[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nGI bytes: ");
> +	for (i = 0; i < IEEE80211_GI_NUM; i++)
> +		len += scnprintf(buf + len, size - len, "\t%s: %llu",
> +				 gi_str[i], sta->rx_gi_byte[i]);
> +
> +	len += scnprintf(buf + len, size - len, "\n\nLegacy rate bytes: ");
> +	for (i = 0; i < IEEE80211_LEGACY_RATE_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "\t%sMbps: %llu",
> +				 legacy_str[i], sta->rx_legacy_byte[i]);
> +		RX_STATS_HIST_FMT(4);
> +	}
> +
> +	len += scnprintf(buf + len, size - len, "\nRate table bytes:  ");
> +	for (i = 0; i < IEEE80211_RATE_TABLE_NUM; i++) {
> +		len += scnprintf(buf + len, size - len, "\t%llu",
> +				 sta->rx_rate_byte[i]);
> +		RX_STATS_HIST_FMT(8);
> +	}
> +
> +	if (len > size)
> +		len = size;
> +	retval = simple_read_from_buffer(userbuf, count, ppos, buf, len);
> +	kfree(buf);
> +
> +#undef RX_STATS_HIST_FMT
> +	return retval;
> +#endif
> +	return -EINVAL;
> +}
> +STA_OPS(rx_stats);
> +
>  static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
>  				 size_t count, loff_t *ppos)
>  {
> @@ -332,6 +456,106 @@ STA_OPS(vht_capa);
>  		debugfs_create_u64(#name, 0400, sta->debugfs.dir,	\
>  			(u64 *) &sta->field);
>  
> +#ifdef CONFIG_MAC80211_DEBUG_PER_STA_RX_STATS
> +static int legacy_rate_to_index(u16 rate)
> +{
> +	int legacy_rate[] = {10, 20, 55, 110, 60, 90, 120,
> +			     180, 240, 360, 480, 540};
> +	int i;
> +
> +	for (i = 0; i < IEEE80211_LEGACY_RATE_NUM - 1; i++)
> +		if (rate == legacy_rate[i])
> +			return i;
> +	return -1;
> +}
> +#endif
> +
> +void ieee80211_rx_h_sta_stats(struct sta_info *sta, struct sk_buff *skb)
> +{
> +#ifdef CONFIG_MAC80211_DEBUG_PER_STA_RX_STATS
> +	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
> +	unsigned int pkt_len = skb->len;
> +	unsigned int bw_idx, gi_idx, mcs_idx = 0, nss_idx = 0, i;
> +
> +	/* Not support 5Mhz and 10Mhz currently  */
> +	if (status->flag & (RX_FLAG_5MHZ | RX_FLAG_10MHZ))
> +		goto out;
> +
> +	if (status->vht_flag & RX_VHT_FLAG_160MHZ)
> +		bw_idx = 3;
> +	else if (status->vht_flag & RX_VHT_FLAG_80MHZ)
> +		bw_idx = 2;
> +	else if (status->flag & RX_FLAG_40MHZ)
> +		bw_idx = 1;
> +	else
> +		bw_idx = 0;
> +
> +	if (status->flag & RX_FLAG_HT) {
> +		mcs_idx = status->rate_idx;
> +		nss_idx = (mcs_idx >> 3) - 1;
> +
> +		if (status->rate_idx > IEEE80211_HT_MCS_NUM - 1 ||
> +		    nss_idx > IEEE80211_NSS_NUM - 1)
> +			goto out;
> +
> +		sta->rx_ht_pkt[mcs_idx]++;
> +		sta->rx_ht_byte[mcs_idx] += pkt_len;
> +		sta->rx_nss_pkt[nss_idx]++;
> +		sta->rx_nss_byte[nss_idx] += pkt_len;
> +		/* To fit into rate table for HT packets */
> +		mcs_idx = mcs_idx % 8;
> +	} else if (status->flag & RX_FLAG_VHT) {
> +		mcs_idx = status->rate_idx;
> +		nss_idx = status->vht_nss - 1;
> +
> +		if (nss_idx > IEEE80211_NSS_NUM - 1 ||
> +		    mcs_idx > (IEEE80211_VHT_MCS_NUM - 1))
> +			goto out;
> +
> +		sta->rx_vht_pkt[mcs_idx]++;
> +		sta->rx_vht_byte[mcs_idx] += pkt_len;
> +		sta->rx_nss_pkt[nss_idx]++;
> +		sta->rx_nss_byte[nss_idx] += pkt_len;
> +	}
> +
> +	gi_idx = (status->flag & RX_FLAG_SHORT_GI) ? 1 : 0;
> +	sta->rx_gi_pkt[gi_idx]++;
> +	sta->rx_gi_byte[gi_idx] += pkt_len;
> +	sta->rx_bw_pkt[bw_idx]++;
> +	sta->rx_bw_byte[bw_idx] += pkt_len;
> +
> +	if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) {
> +		/* Update Rate table based on http://mcsindex.com/ */
> +		i = mcs_idx * 8 + 8 * 10 * nss_idx;
> +		i += bw_idx * 2 + gi_idx;
> +		sta->rx_rate_pkt[i]++;
> +		sta->rx_rate_byte[i] += pkt_len;
> +	} else {
> +		struct ieee80211_local *local = sta->local;
> +		struct ieee80211_sub_if_data *sdata = sta->sdata;
> +		enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
> +		struct ieee80211_supported_band *sband;
> +		int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
> +		u16 brate, legacy_rate;
> +
> +		if (status->rate_idx > IEEE80211_LEGACY_RATE_NUM - 1)
> +			goto out;
> +
> +		sband = local->hw.wiphy->bands[band];
> +		brate = sband->bitrates[status->rate_idx].bitrate;
> +		legacy_rate = DIV_ROUND_UP(brate, 1 << shift);
> +		i = legacy_rate_to_index(legacy_rate);
> +		if (i < 0)
> +			goto out;
> +
> +		sta->rx_legacy_pkt[i]++;
> +		sta->rx_legacy_byte[i] += pkt_len;
> +	}
> +out:
> +	return;
> +#endif
> +}
> +
>  void ieee80211_sta_debugfs_add(struct sta_info *sta)
>  {
>  	struct ieee80211_local *local = sta->local;
> @@ -365,6 +589,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
>  	DEBUGFS_ADD(agg_status);
>  	DEBUGFS_ADD(ht_capa);
>  	DEBUGFS_ADD(vht_capa);
> +	DEBUGFS_ADD(rx_stats);
>  
>  	DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
>  	DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
> diff --git a/net/mac80211/debugfs_sta.h b/net/mac80211/debugfs_sta.h
> index 8b60890..c7a3424 100644
> --- a/net/mac80211/debugfs_sta.h
> +++ b/net/mac80211/debugfs_sta.h
> @@ -6,9 +6,14 @@
>  #ifdef CONFIG_MAC80211_DEBUGFS
>  void ieee80211_sta_debugfs_add(struct sta_info *sta);
>  void ieee80211_sta_debugfs_remove(struct sta_info *sta);
> +void ieee80211_rx_h_sta_stats(struct sta_info *sta, struct sk_buff *skb);
>  #else
>  static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
>  static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
> +static inline void ieee80211_rx_h_sta_stats(struct sta_info *sta,
> +					    struct sk_buff *skb)
> +{
> +}
>  #endif
>  
>  #endif /* __MAC80211_DEBUGFS_STA_H */
> diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
> index bc08185..c5e8559 100644
> --- a/net/mac80211/rx.c
> +++ b/net/mac80211/rx.c
> @@ -31,6 +31,7 @@
>  #include "tkip.h"
>  #include "wme.h"
>  #include "rate.h"
> +#include "debugfs_sta.h"
>  
>  static inline void ieee80211_rx_stats(struct net_device *dev, u32 len)
>  {
> @@ -1421,6 +1422,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
>  			sta->rx_stats.last_rate_flag = status->flag;
>  			sta->rx_stats.last_rate_vht_flag = status->vht_flag;
>  			sta->rx_stats.last_rate_vht_nss = status->vht_nss;
> +			ieee80211_rx_h_sta_stats(sta, skb);
>  		}
>  	}
>  
> diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
> index d605162..2c0d806 100644
> --- a/net/mac80211/sta_info.h
> +++ b/net/mac80211/sta_info.h
> @@ -248,6 +248,13 @@ struct sta_ampdu_mlme {
>  
>  #define IEEE80211_FAST_XMIT_MAX_IV	18
>  
> +#define IEEE80211_HT_MCS_NUM		32
> +#define IEEE80211_VHT_MCS_NUM		10
> +#define IEEE80211_BW_NUM		4
> +#define IEEE80211_NSS_NUM		4
> +#define IEEE80211_GI_NUM		2
> +#define IEEE80211_RATE_TABLE_NUM	320
> +#define IEEE80211_LEGACY_RATE_NUM	12
>  /**
>   * struct ieee80211_fast_tx - TX fastpath information
>   * @key: key to use for hw crypto
> @@ -495,6 +502,22 @@ struct sta_info {
>  
>  	struct cfg80211_chan_def tdls_chandef;
>  
> +#ifdef CONFIG_MAC80211_DEBUG_PER_STA_RX_STATS
> +	u64 rx_legacy_pkt[IEEE80211_LEGACY_RATE_NUM];
> +	u64 rx_ht_pkt[IEEE80211_HT_MCS_NUM];
> +	u64 rx_vht_pkt[IEEE80211_VHT_MCS_NUM];
> +	u64 rx_bw_pkt[IEEE80211_BW_NUM];
> +	u64 rx_nss_pkt[IEEE80211_NSS_NUM];
> +	u64 rx_gi_pkt[IEEE80211_GI_NUM];
> +	u64 rx_rate_pkt[IEEE80211_RATE_TABLE_NUM];
> +	u64 rx_legacy_byte[IEEE80211_LEGACY_RATE_NUM];
> +	u64 rx_ht_byte[IEEE80211_HT_MCS_NUM];
> +	u64 rx_vht_byte[IEEE80211_VHT_MCS_NUM];
> +	u64 rx_bw_byte[IEEE80211_BW_NUM];
> +	u64 rx_nss_byte[IEEE80211_NSS_NUM];
> +	u64 rx_gi_byte[IEEE80211_GI_NUM];
> +	u64 rx_rate_byte[IEEE80211_RATE_TABLE_NUM];
> +#endif
>  	/* keep last! */
>  	struct ieee80211_sta sta;
>  };
> -- 
> 1.7.9.5
> 
VHT MCS packets: MCS 0: 0, MCS 1: 0, MCS 2: 0, MCS 3: 0, MCS 4: 0, 
		MCS 5: 0, MCS 6: 0, MCS 7: 0, MCS 8: 0, MCS 9: 0, 
		

HT MCS packets: MCS 0: 0, MCS 1: 0, MCS 2: 0, MCS 3: 0, MCS 4: 0, 
		MCS 5: 0, MCS 6: 0, MCS 7: 0, MCS 8: 0, MCS 9: 0, 
		MCS 10: 0, MCS 11: 0, MCS 12: 8, MCS 13: 12, MCS 14: 33, 
		MCS 15: 138005, MCS 16: 0, MCS 17: 0, MCS 18: 0, MCS 19: 728, 
		MCS 20: 191, MCS 21: 1218, MCS 22: 0, MCS 23: 0, MCS 24: 0, 
		MCS 25: 0, MCS 26: 0, MCS 27: 0, MCS 28: 0, MCS 29: 0, 
		MCS 30: 0, MCS 31: 0, 

BW packets: 	20Mhz: 1157	40Mhz: 139038	80Mhz: 0	160Mhz: 0

NSS packets: 	1x1: 138058	2x2: 2137	3x3: 0	4x4: 0

GI packets: 	LGI: 2196	SGI: 137999

Legacy rate packets: 	1Mbps: 0	2Mbps: 0	5Mbps: 0	11Mbps: 0
			6Mbps: 0	9Mbps: 0	12Mbps: 0	18Mbps: 0
			24Mbps: 0	36Mbps: 0	48Mbps: 0	54Mbps: 0
		

Rate table packets:  	0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			8	0	0	0	0	0	0	0
			4	0	8	0	0	0	0	0
			5	0	28	0	0	0	0	0
			0	431	6	137568	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			704	0	24	0	0	0	0	0
			5	0	186	0	0	0	0	0
			0	0	1218	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
		

VHT MCS bytes: MCS 0: 0, MCS 1: 0, MCS 2: 0, MCS 3: 0, MCS 4: 0, 
		MCS 5: 0, MCS 6: 0, MCS 7: 0, MCS 8: 0, MCS 9: 0, 
		

HT MCS bytes: MCS 0: 0, MCS 1: 0, MCS 2: 0, MCS 3: 0, MCS 4: 0, 
		MCS 5: 0, MCS 6: 0, MCS 7: 0, MCS 8: 0, MCS 9: 0, 
		MCS 10: 0, MCS 11: 0, MCS 12: 836, MCS 13: 1392, MCS 14: 3894, 
		MCS 15: 15984118, MCS 16: 0, MCS 17: 0, MCS 18: 0, MCS 19: 84279, 
		MCS 20: 21834, MCS 21: 94708, MCS 22: 0, MCS 23: 0, MCS 24: 0, 
		MCS 25: 0, MCS 26: 0, MCS 27: 0, MCS 28: 0, MCS 29: 0, 
		MCS 30: 0, MCS 31: 0, 

NSS bytes: 	1x1: 15990240	2x2: 200821	3x3: 0	4x4: 0

BW bytes: 	20Mhz: 133490	40Mhz: 16057571	80Mhz: 0	160Mhz: 0

GI bytes: 	LGI: 207599	SGI: 15983462

Legacy rate bytes: 	1Mbps: 0	2Mbps: 0	5Mbps: 0	11Mbps: 0
			6Mbps: 0	9Mbps: 0	12Mbps: 0	18Mbps: 0
			24Mbps: 0	36Mbps: 0	48Mbps: 0	54Mbps: 0
		

Rate table bytes:  	0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			836	0	0	0	0	0	0	0
			472	0	920	0	0	0	0	0
			590	0	3304	0	0	0	0	0
			0	49718	656	15933744	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			81556	0	2723	0	0	0	0	0
			318	0	21516	0	0	0	0	0
			0	0	94708	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
			0	0	0	0	

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