You make incredibly fair points and I don&#x27;t have the data to answer what you&#x27;ve raised. This could be lack of research or the fact that CF hasn&#x27;t released it. I expect a 20&#x2F;80 non-researched&#x2F;non-available mix.<p>My understanding is that the WAF detects trivial stuff like SQL injection and XSS, and the video also mentions it detected ShellShock and so forth (yeah, this was a while ago).<p>&quot;Thousands of regular expressions&quot; is mentioned verbally in the video around ~11:25. That&#x27;s where I got that from.<p>There are some bits mentioned about the hardware around 19:30:<p>- E5-2630v3 (16 cores, 32 w&#x2F; HT which is turned off), 128GB RAM, 10Gbps<p>- Custom built by Quanta: 4 nodes per 2U (each node is like half-width and 1U high), redundant 2xPSU in the middle<p>- 40 machines run Kafka storing 400TB of log data (ingest @ 15Gbps), 50TB disk per node<p>- 5 machines run CitusDB (sharded PostgreSQL) to power realtime graph generation, 12TB SSD per node<p>- 100+ machines for realtime analytics running Go (and presumably LuaJIT) - LuaJIT seems to be the realtime &quot;hmm, interesting&quot; flagging system, while Go is used for in-depth intelligent analysis that&#x27;s (I assume) slightly behind realtime.<p>Also, the video is actually over here - <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=LA-gNoxSLCE" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=LA-gNoxSLCE</a><p>---<p>I&#x27;m curious to understand what tail latency is, and very interested to learn more about language latency and performance in general. What subjects would you recommend I learn about &#x2F; read? (I would describe myself as interested from a hobbyist-intermediate standpont, but from a non-academic POV; I unfortunately get dismally lost with formulaic presentations, math is not a strong subject for me.)