add performance section

_posts/2023-12-17-bradis.md

@@ -82,8 +82,53 @@ Also, try some commands that use two clients.
 
 <div id="repl-two"></div>
 
-* A server that listens on a port and accepts connections over TCP.
-* An [implementation][respite] of the [RESP protocol][resp].
+### Performance
+
+One of my main goals was to create something that is reasonably competitive
+with C-Redis from a latency and throughput standpoint. According to
+`redis-benchmark`, C-Redis is 1.7 times as fast as Bradis. I have some ideas
+for closing that gap, but I'm pretty happy to be in the same order of
+magnitude. 100k requests per second is pretty fast!
+
+Bradis:
+
+```
+~: redis-benchmark -t set -n 1000000 -c 20 -p 3333
+====== SET ======
+  1000000 requests completed in 9.57 seconds
+  20 parallel clients
+  3 bytes payload
+  keep alive: 1
+  multi-thread: no
+
+…
+
+Summary:
+  throughput summary: 104471.38 requests per second
+  latency summary (msec):
+          avg       min       p50       p95       p99       max
+        0.109     0.040     0.111     0.127     0.143     0.591
+```
+
+C-Redis:
+
+```
+~: redis-benchmark -t set -n 1000000 -c 20
+====== SET ======
+  1000000 requests completed in 5.73 seconds
+  20 parallel clients
+  3 bytes payload
+  keep alive: 1
+  host configuration "save": 3600 1 300 100 60 10000
+  host configuration "appendonly": no
+  multi-thread: no
+
+Summary:
+  throughput summary: 174581.00 requests per second
+  latency summary (msec):
+          avg       min       p50       p95       p99       max
+        0.067     0.024     0.063     0.119     0.175     1.799
+```
 
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