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#!runpy.sh
"""\
This module contains tools for analyzing viewer asset metrics logs produced by the viewer.
$LicenseInfo:firstyear=2016&license=viewerlgpl$
Second Life Viewer Source Code
Copyright (C) 2016, Linden Research, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation;
version 2.1 of the License only.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
$/LicenseInfo$
"""
import argparse
from lxml import etree
import llsd
def get_metrics_record(infiles):
for filename in args.infiles:
f = open(filename)
# get an iterable
context = etree.iterparse(f, events=("start", "end"))
# turn it into an iterator
context = iter(context)
# get the root element
event, root = next(context)
try:
for event, elem in context:
if event == "end" and elem.tag == "llsd":
xmlstr = etree.tostring(elem, encoding="utf8", method="xml")
sd = llsd.parse_xml(xmlstr)
yield sd
except etree.XMLSyntaxError:
print("Fell off end of document")
f.close()
def update_stats(stats,rec):
for region in rec["regions"]:
region_key = (region["grid_x"],region["grid_y"])
#print "region",region_key
for field, val in region.items():
if field in ["duration","grid_x","grid_y"]:
continue
if field == "fps":
# handle fps record as special case
pass
else:
#print "field",field
stats.setdefault(field,{})
type_stats = stats.get(field)
newcount = val["resp_count"]
#print "field",field,"add count",newcount
type_stats["count"] = type_stats.get("count",0) + val["resp_count"]
#print "field",field,"count",type_stats["count"]
if (newcount>0):
type_stats["sum"] = type_stats.get("sum",0) + val["resp_count"] * val["resp_mean"]
type_stats["sum_bytes"] = type_stats.get("sum_bytes",0) + val["resp_count"] * val.get("resp_mean_bytes",0)
type_stats["enqueued"] = type_stats.get("enqueued",0) + val["enqueued"]
type_stats["dequeued"] = type_stats.get("dequeued",0) + val["dequeued"]
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="process metric xml files for viewer asset fetching")
parser.add_argument("--verbose", action="store_true",help="verbose flag")
parser.add_argument("infiles", nargs="+", help="name of .xml files to process")
args = parser.parse_args()
#print "process files:",args.infiles
stats = {}
for rec in get_metrics_record(args.infiles):
#print "record",rec
update_stats(stats,rec)
for key in sorted(stats.keys()):
val = stats[key]
if val["count"] > 0:
print(key,"count",val["count"],"mean_time",val["sum"]/val["count"],"mean_bytes",val["sum_bytes"]/val["count"],"net bytes/sec",val["sum_bytes"]/val["sum"],"enqueued",val["enqueued"],"dequeued",val["dequeued"])
else:
print(key,"count",val["count"],"enqueued",val["enqueued"],"dequeued",val["dequeued"])
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