Change perf job labels to reflect the actual OS they run on (#15361)

Author: Victor "Nate" Graf

perf.groovy

@@ -264,7 +264,7 @@ def static getFullPerfJobName(def project, def os, def isPR) {
     }
 
     // Actual perf testing on the following OSes
-    def perfOSList = ['Ubuntu14.04']
+    def perfOSList = ['Ubuntu16.04']
     perfOSList.each { os ->
         def newJob = job(getFullPerfJobName(project, os, isPR)) {
 
@@ -403,7 +403,7 @@ def static getFullThroughputJobName(def project, def os, def isPR) {
     }
 
     // Actual perf testing on the following OSes
-    def throughputOSList = ['Ubuntu14.04']
+    def throughputOSList = ['Ubuntu16.04']
     def throughputOptLevelList = ['full_opt', 'min_opt']
 
     def throughputOSOptLevelList = []

tests/scripts/run-throughput-perf.py

@@ -61,7 +61,8 @@
 
 os_group_list = {
     'Windows_NT': 'Windows_NT',
-    'Ubuntu14.04': 'Linux'
+    'Ubuntu14.04': 'Linux',
+    'Ubuntu16.04': 'Linux'
 }
 
 python_exe_list = {
@@ -132,7 +133,7 @@ def validate_arg(arg, check):
     valid_archs = {'Windows_NT': ['x86', 'x64'], 'Linux': ['x64']}
     valid_build_types = ['Release']
     valid_run_types = ['rolling', 'private']
-    valid_os = ['Windows_NT', 'Ubuntu14.04']
+    valid_os = ['Windows_NT', 'Ubuntu14.04', 'Ubuntu16.04']
     valid_opt_levels = ['full_opt', 'min_opt']
 
     arch = next((a for a in valid_archs if a.lower() == arch.lower()), arch)