How Synapse extracts granular trace context directly from Linux socket buffers without language runtimes or bytecode injection.
Traditional APMs require installing bulky SDKs in Python, Node.js, Go, or Java codebases, adding substantial memory overhead and potential crash risks. Synapse attaches directly to `sys_enter_connect` and `tcp_sendmsg` tracepoints inside the kernel.
When an outage strikes, engineers waste hours guessing which service failed first. Synapse computes an acyclic causal graph in real time, pointing directly to the offending database query or network partition before alerts flood Slack.