It turns out that I had serious memory issues that were consuming at least 500MB on each side.

Basically, it was how I was forcing things to grown to the maximum allocation size in
sshbuf_allocate. Additionally, PACKET_MAX_SIZE was putting more pressure on things when it was
at the default of 256KB. I reduced it to SSH_IOBUFSZ + 1K (so 33KB) and it seems to be a lot
more responsive and a lot less memory hungry.

Lastly, I added two new thingt o aid with debugging. The first is the ability to label the sshbuf structs
that are being created. This is just a freeform text label that defaults to the function name of
the function that called sshbuf_new. Second is a routine called read_mem_stats that gets the
current memory usage of the application. This only works under linux though as it requires access
to proc.

Author: rapier1

version.h

@@ -3,5 +3,5 @@
 #define SSH_VERSION	"OpenSSH_9.3"
 
 #define SSH_PORTABLE	"p1"
-#define SSH_HPN         "-hpn17v12"
+#define SSH_HPN         "-hpn17v13"
 #define SSH_RELEASE	SSH_VERSION SSH_PORTABLE SSH_HPN