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authorahothan <ahothan@cisco.com>2019-06-23 09:24:54 -0700
committerahothan <ahothan@cisco.com>2019-06-23 09:32:08 -0700
commit108a9f65ed0792ccb427e081ef3068002443983e (patch)
tree2d5caffcdfb6e43f48278b316c2bded2eac8f5b1
parenta502eb730cb7f5d898769d6958a03c28878332bb (diff)
NFVBENCH-95 Add HdrHistogram encodes returned by TRex to JSON results
Change-Id: Id80da949f7b1f3736558facd0128a0bd82b35010 Signed-off-by: ahothan <ahothan@cisco.com>
-rw-r--r--docs/development/building/build.rst2
-rw-r--r--nfvbench/packet_stats.py2
-rw-r--r--nfvbench/traffic_gen/traffic_base.py1
-rw-r--r--nfvbench/traffic_gen/trex_gen.py65
4 files changed, 69 insertions, 1 deletions
diff --git a/docs/development/building/build.rst b/docs/development/building/build.rst
index e195add..1b6bc0a 100644
--- a/docs/development/building/build.rst
+++ b/docs/development/building/build.rst
@@ -64,6 +64,8 @@ VM code has changed:
- update VM version in the 2 locations
- commit VM changes with gerrit to trigger VM build and publication to google storage
+- IMPORTANT! wait for the VM image to be pushed to google storage before going to the next step
+ (otherwise the container build will fail as it will not find the VM image)
- apply a new semver tag to trigger the container image build/publication
To increase the TRex version:
diff --git a/nfvbench/packet_stats.py b/nfvbench/packet_stats.py
index 4b9eac5..3203b72 100644
--- a/nfvbench/packet_stats.py
+++ b/nfvbench/packet_stats.py
@@ -237,6 +237,8 @@ class PacketPathStats(object):
results = {'lat_min_usec': latency.min_usec,
'lat_max_usec': latency.max_usec,
'lat_avg_usec': latency.avg_usec}
+ if latency.hdrh:
+ results['hdrh'] = latency.hdrh
else:
results = {}
results['packets'] = counters
diff --git a/nfvbench/traffic_gen/traffic_base.py b/nfvbench/traffic_gen/traffic_base.py
index 434fdae..9c78d7e 100644
--- a/nfvbench/traffic_gen/traffic_base.py
+++ b/nfvbench/traffic_gen/traffic_base.py
@@ -30,6 +30,7 @@ class Latency(object):
self.min_usec = sys.maxint
self.max_usec = 0
self.avg_usec = 0
+ self.hdrh = None
if latency_list:
for lat in latency_list:
if lat.available():
diff --git a/nfvbench/traffic_gen/trex_gen.py b/nfvbench/traffic_gen/trex_gen.py
index 989940a..036c899 100644
--- a/nfvbench/traffic_gen/trex_gen.py
+++ b/nfvbench/traffic_gen/trex_gen.py
@@ -245,11 +245,74 @@ class TRex(AbstractTrafficGenerator):
else:
latencies[port].min_usec = get_latency(lat['total_min'])
latencies[port].avg_usec = get_latency(lat['average'])
+ # pick up the HDR histogram if present (otherwise will raise KeyError)
+ latencies[port].hdrh = lat['hdrh']
except KeyError:
pass
def __combine_latencies(self, in_stats, results, port_handle):
- """Traverse TRex result dictionary and combines chosen latency stats."""
+ """Traverse TRex result dictionary and combines chosen latency stats.
+
+ example of latency dict returned by trex (2 chains):
+ 'latency': {256: {'err_cntrs': {'dropped': 0,
+ 'dup': 0,
+ 'out_of_order': 0,
+ 'seq_too_high': 0,
+ 'seq_too_low': 0},
+ 'latency': {'average': 26.5,
+ 'hdrh': u'HISTFAAAAEx4nJNpmSgz...bFRgxi',
+ 'histogram': {20: 303,
+ 30: 320,
+ 40: 300,
+ 50: 73,
+ 60: 4,
+ 70: 1},
+ 'jitter': 14,
+ 'last_max': 63,
+ 'total_max': 63,
+ 'total_min': 20}},
+ 257: {'err_cntrs': {'dropped': 0,
+ 'dup': 0,
+ 'out_of_order': 0,
+ 'seq_too_high': 0,
+ 'seq_too_low': 0},
+ 'latency': {'average': 29.75,
+ 'hdrh': u'HISTFAAAAEV4nJN...CALilDG0=',
+ 'histogram': {20: 261,
+ 30: 431,
+ 40: 3,
+ 50: 80,
+ 60: 225},
+ 'jitter': 23,
+ 'last_max': 67,
+ 'total_max': 67,
+ 'total_min': 20}},
+ 384: {'err_cntrs': {'dropped': 0,
+ 'dup': 0,
+ 'out_of_order': 0,
+ 'seq_too_high': 0,
+ 'seq_too_low': 0},
+ 'latency': {'average': 18.0,
+ 'hdrh': u'HISTFAAAADR4nJNpm...MjCwDDxAZG',
+ 'histogram': {20: 987, 30: 14},
+ 'jitter': 0,
+ 'last_max': 34,
+ 'total_max': 34,
+ 'total_min': 20}},
+ 385: {'err_cntrs': {'dropped': 0,
+ 'dup': 0,
+ 'out_of_order': 0,
+ 'seq_too_high': 0,
+ 'seq_too_low': 0},
+ 'latency': {'average': 19.0,
+ 'hdrh': u'HISTFAAAADR4nJNpm...NkYmJgDdagfK',
+ 'histogram': {20: 989, 30: 11},
+ 'jitter': 0,
+ 'last_max': 38,
+ 'total_max': 38,
+ 'total_min': 20}},
+ 'global': {'bad_hdr': 0, 'old_flow': 0}},
+ """
total_max = 0
average = 0
total_min = float("inf")