added the epics kpi comparison

src/benchmarking-code/sample-output/docker_deploy_500_PVS_100.0_ms/process_data_read15_temperature_delta.csv

@@ -0,0 +1,11 @@
+PV Name,Value Written,Value Read,Time,Delta
+process_data_read15:temperature,30,30.0,1626164302835,0.0
+process_data_read15:temperature,31,30.0,1626164302835,0.0
+process_data_read15:temperature,32,31.0,1626164303522,687.0
+process_data_read15:temperature,33,33.0,1626164303729,207.0
+process_data_read15:temperature,34,34.0,1626164303830,101.0
+process_data_read15:temperature,35,35.0,1626164303930,100.0
+process_data_read15:temperature,36,36.0,1626164304030,100.0
+process_data_read15:temperature,37,37.0,1626164304131,101.0
+process_data_read15:temperature,38,38.0,1626164304231,100.0
+process_data_read15:temperature,39,39.0,1626164304341,110.0

src/benchmarking-code/sample-output/physical_server_500_PVS_50.0_ms/process_data_read140_temperature_delta.csv

@@ -0,0 +1,21 @@
+PV Name,Value Written,Value Read,Time,Delta
+process_data_read140:temperature,280,280.0,1626109934648,0.0
+process_data_read140:temperature,281,280.0,1626109934648,0.0
+process_data_read140:temperature,282,280.0,1626109934648,0.0
+process_data_read140:temperature,283,280.0,1626109934648,0.0
+process_data_read140:temperature,284,280.0,1626109934648,0.0
+process_data_read140:temperature,285,285.0,1626109935496,848.0
+process_data_read140:temperature,286,286.0,1626109935549,53.0
+process_data_read140:temperature,287,287.0,1626109935599,50.0
+process_data_read140:temperature,288,288.0,1626109935650,51.0
+process_data_read140:temperature,289,289.0,1626109935702,52.0
+process_data_read140:temperature,290,290.0,1626109935752,50.0
+process_data_read140:temperature,291,291.0,1626109935802,50.0
+process_data_read140:temperature,292,292.0,1626109935852,50.0
+process_data_read140:temperature,293,293.0,1626109935903,51.0
+process_data_read140:temperature,294,294.0,1626109935958,55.0
+process_data_read140:temperature,295,295.0,1626109936008,50.0
+process_data_read140:temperature,296,296.0,1626109936063,55.0
+process_data_read140:temperature,297,297.0,1626109936117,54.0
+process_data_read140:temperature,298,298.0,1626109936167,50.0
+process_data_read140:temperature,299,299.0,1626109936218,51.0

src/benchmarking-code/sample-output/process_data_read67_temperature_delta.csv

@@ -1,11 +0,0 @@
-PV Name,Value Written,Value Read,Time,Delta
-process_data_read67:temperature,134,134.0,1626109406706,0.0
-process_data_read67:temperature,135,135.0,1626109407163,457.0
-process_data_read67:temperature,136,136.0,1626109407263,100.0
-process_data_read67:temperature,137,137.0,1626109407363,100.0
-process_data_read67:temperature,138,138.0,1626109407463,100.0
-process_data_read67:temperature,139,139.0,1626109407564,101.0
-process_data_read67:temperature,140,140.0,1626109407664,100.0
-process_data_read67:temperature,141,141.0,1626109407764,100.0
-process_data_read67:temperature,142,142.0,1626109407869,105.0
-process_data_read67:temperature,143,143.0,1626109407970,101.0