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[enable counters] provide initial rates parameters #5048

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merged 4 commits into from
Nov 18, 2020
Merged

[enable counters] provide initial rates parameters #5048

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cfb5cca
[enable counters] provide initial rates parameters
Jul 27, 2020
b5eafea
add descriptive comment
Aug 12, 2020
5889d86
Merge branch 'master' of https://github.com/Azure/sonic-buildimage in…
volodymyrsamotiy Sep 15, 2020
49855cc
Merge branch 'master' of https://github.com/Azure/sonic-buildimage in…
volodymyrsamotiy Nov 10, 2020
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18 changes: 18 additions & 0 deletions dockers/docker-orchagent/enable_counters.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,27 @@
import swsssdk
import time

# ALPHA defines the size of the window over which we calculate the average value. ALPHA is 2/(N+1) where N is the interval(window size)
# In this case we configure the window to be 10s. This way if we have a huge 1s spike in traffic,
# the average rate value will show a curve descending from the spike to the usual rate over approximately 10s.
DEFAULT_SMOOTH_INTERVAL = '10'
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DEFAULT_ALPHA = '0.18'

def enable_counter_group(db, name):
info = {}
info['FLEX_COUNTER_STATUS'] = 'enable'
db.mod_entry("FLEX_COUNTER_TABLE", name, info)

def enable_rates():
# set the default interval for rates
counters_db = swsssdk.SonicV2Connector()
counters_db.connect('COUNTERS_DB')
counters_db.set('COUNTERS_DB', 'RATES:PORT', 'PORT_SMOOTH_INTERVAL', DEFAULT_SMOOTH_INTERVAL)
counters_db.set('COUNTERS_DB', 'RATES:PORT', 'PORT_ALPHA', DEFAULT_ALPHA)
counters_db.set('COUNTERS_DB', 'RATES:RIF', 'RIF_SMOOTH_INTERVAL', DEFAULT_SMOOTH_INTERVAL)
counters_db.set('COUNTERS_DB', 'RATES:RIF', 'RIF_ALPHA', DEFAULT_ALPHA)


def enable_counters():
db = swsssdk.ConfigDBConnector()
db.connect()
Expand All @@ -19,6 +35,7 @@ def enable_counters():
enable_counter_group(db, 'QUEUE_WATERMARK')
enable_counter_group(db, 'BUFFER_POOL_WATERMARK')
enable_counter_group(db, 'PORT_BUFFER_DROP')
enable_rates()

def get_uptime():
with open('/proc/uptime') as fp:
Expand All @@ -37,3 +54,4 @@ def main():

if __name__ == '__main__':
main()