Add an idea, and another set of typo fixes

content/articles/2024-09-08-sflow-1.md

@@ -669,7 +669,8 @@ though.
 I'll continue to work with the folks in the sFlow and VPP communities and iterate on the plugin and
 other **sFlow Agent** machinery. In an upcoming article, I hope to share more details on how to tie
 the VPP plugin in to the `hsflowd` host sflow daemon in a way that the interface indexes, counters
-and pcaket lengths are all correct
+and packet lengths are all correct. Of course, the main improvement that we can make is to allow for
+the system to work better under load, which will take some thinking.
 
 I should do a few more tests with a debug binary and profiling turned on. I quickly ran a `perf`
 over the VPP (release / optimized)  binary running on the bench, but it merely said 80% of time was
@@ -702,6 +703,19 @@ interesting work to do on this `sflow` plugin, with matching ifIndex for consume
 reading interface counters from the dataplane (or from the Prometheus Exporter), and most
 importantly, ensuring it works well, or fails gracefully, under stringent load.
 
+From the _cray-cray_ ideas department, what if we:
+1.   In worker thread, produced the sample but instead of sending an RPC to main and taking the
+lock, append it to a producer sample queue and move on. This way, no locks are needed, and each
+worker thread will have its own producer queue.
+
+1.   Create a separate worker (or even pool of workers), running on possibly a different CPU (or in
+main), that runs a loop iterating on all sflow sample queues consuming the samples and sending them
+in batches to the PSAMPLE Netlink group, possibly dropping samples if there are too many coming in.
+
+I'm reminded that this pattern exists already -- async crypto workers create a `crypto-dispatch`
+node that acts as poller for inbound crypto, and it hands off the result back into the worker
+thread: lockless at the expense of some complexity!
+
 ## Acknowledgements
 
 The plugin I am testing here is a prototype written by Neil McKee of inMon. I also wanted to say