pmrep conf: use bpf instead of bcc pmda for proc net metrics

Now with the new BPF PMDA netatop module available switch the pmrep
per-process proc-activity, proc-net, and proc-net-ext metricsets to
use it. Also replace the earlier call counts with the more commonly
used packet counts in proc-net-ext.

Lastly, remove commented out bcc.proc.io.total reference from proc-io,
the metricset already includes the proc.io.total_bytes derived metric.

src/pmrep/conf/proc.conf

@@ -76,9 +76,9 @@ iotot.label       = IO KB/s
 iotot.formula     = instant(proc.io.read_bytes) + instant(proc.io.write_bytes) - instant(proc.io.cancelled_write_bytes)
 iotot.unit        = KB/s
 iotot.width       = 8
-net               = bcc.proc.net.total.bytes
+net               = bpf.proc.net.total.bytes
 net.label         = Net KB/s
-net.formula       = bcc.proc.net.tcp.recv.bytes + bcc.proc.net.tcp.send.bytes + bcc.proc.net.udp.recv.bytes + bcc.proc.net.udp.send.bytes
+net.formula       = bpf.proc.net.tcp.recv.bytes + bpf.proc.net.tcp.send.bytes + bpf.proc.net.udp.recv.bytes + bpf.proc.net.udp.send.bytes
 net.unit          = KB/s
 net.width         = 8
 
@@ -194,7 +194,6 @@ proc.io.write_bytes              = ,,KB/s,,
 proc.io.total_bytes              = ,,KB/s,,
 proc.io.cancelled_write_bytes    = ,,KB/s,,
 proc.psinfo.delayacct_blkio_time = ,,,,
-#bcc.proc.io.total                = ,,KB/s,,
 
 [proc-io-ext]
 instinfo = no
@@ -209,19 +208,19 @@ proc.io.syscw = ,,,,
 instinfo = no
 unitinfo = yes
 precision = 2
-bcc.proc.net.tcp.recv.bytes = TCP recv,,KB/s,,
-bcc.proc.net.tcp.send.bytes = TCP send,,KB/s,,
-bcc.proc.net.udp.recv.bytes = UDP recv,,KB/s,,
-bcc.proc.net.udp.send.bytes = UDP send,,KB/s,,
+bpf.proc.net.tcp.recv.bytes = TCP recv,,KB/s,,
+bpf.proc.net.tcp.send.bytes = TCP send,,KB/s,,
+bpf.proc.net.udp.recv.bytes = UDP recv,,KB/s,,
+bpf.proc.net.udp.send.bytes = UDP send,,KB/s,,
 
 [proc-net-ext]
 instinfo = no
 unitinfo = yes
 precision = 0
-bcc.proc.net.tcp.recv.calls = ,,,,
-bcc.proc.net.tcp.send.calls = ,,,,
-bcc.proc.net.udp.recv.calls = ,,,,
-bcc.proc.net.udp.send.calls = ,,,,
+bpf.proc.net.tcp.recv.packets = TCP recv pkts,,,,
+bpf.proc.net.tcp.send.packets = TCP send pkts,,,,
+bpf.proc.net.udp.recv.packets = UDP recv pkts,,,,
+bpf.proc.net.udp.send.packets = UDP send pkts,,,,
 
 [proc-children]
 instinfo = no