This article is a quick reference for an explanation of the values of the transaction and checkpoint timings in policy traces on ProxySG or Advanced Secure Gateway (ASG).
The timings are given in the new policy trace help with understanding how much time it takes for a ProxySG to serve a web request.
The timings start at time 0 and for each keyword "start" the time that follows is elapsed milliseconds from the beginning of the request. Any timings under 1ms is rounded to 0ms
Find the provided description for each line below with a separator "<="
url.category: [email protected] Coat
For a request that is being served from the cache on the proxy, the value:
cache-hit: start 1 elapsed 0 ms may be present. The proxy may still go to the OCS to verify the object in the cache.
Some notes regarding SSL policy timing values:
total categorization time: 0
The zeroes above are from the fact that the categorization did not happen from the URL, since for SSL transactions the categories are determined by server certificate hostname.
Let's look at the timings reported from an SSL transaction:
This SSL policy transaction really did not have any bytes transferred and no latency was added. The reason being that this was just the SSL connection that the proxy uses to make the interception decision and to verify the server.