diff -urN tux-ref/fs/proc/proc_misc.c tux/fs/proc/proc_misc.c
--- tux-ref/fs/proc/proc_misc.c	Thu Apr 18 04:08:34 2002
+++ tux/fs/proc/proc_misc.c	Thu Apr 18 04:08:58 2002
@@ -255,6 +255,66 @@
 };
 #endif
 
+
+/*
+ * print out TUX internal statistics into /proc/stat.
+ * (Most of them are not maintained if CONFIG_TUX_DEBUG is off.)
+ */
+
+static int print_tux_procinfo (char *page)
+{
+	unsigned int len = 0, i;
+
+#define P(x) \
+	do { len += sprintf(page + len, #x ": %u\n", x); } while(0)
+
+	P(kstat.input_fastpath);
+	P(kstat.input_slowpath);
+	P(kstat.inputqueue_got_packet);
+	P(kstat.inputqueue_no_packet);
+	P(kstat.nr_keepalive_optimized);
+	P(kstat.parse_static_incomplete);
+	P(kstat.parse_static_redirect);
+	P(kstat.parse_static_cachemiss);
+	P(kstat.parse_static_nooutput);
+	P(kstat.parse_static_normal);
+	P(kstat.parse_dynamic_incomplete);
+	P(kstat.parse_dynamic_redirect);
+	P(kstat.parse_dynamic_cachemiss);
+	P(kstat.parse_dynamic_nooutput);
+	P(kstat.parse_dynamic_normal);
+	P(kstat.complete_parsing);
+	P(kstat.nr_free_pending);
+	P(kstat.nr_allocated);
+	P(kstat.nr_idle_input_pending);
+	P(kstat.nr_output_space_pending);
+	P(kstat.nr_input_pending);
+	P(kstat.nr_cachemiss_pending);
+	P(kstat.nr_secondary_pending);
+	P(kstat.nr_output_pending);
+	P(kstat.nr_redirect_pending);
+	P(kstat.nr_finish_pending);
+	P(kstat.nr_userspace_pending);
+	P(kstat.nr_postpone_pending);
+	P(kstat.static_lookup_cachemisses);
+	P(kstat.static_sendfile_cachemisses);
+	P(kstat.user_lookup_cachemisses);
+	P(kstat.user_fetch_cachemisses);
+	P(kstat.user_sendobject_cachemisses);
+	P(kstat.user_sendobject_write_misses);
+	P(kstat.nr_keepalive_reqs);
+	P(kstat.nr_nonkeepalive_reqs);
+
+	len += sprintf(page + len, "keephist: ");
+	for (i = 0; i < KEEPALIVE_HIST_SIZE; i++)
+		if (kstat.keepalive_hist[i])
+			len += sprintf(page + len, "%d(%d) ",
+					i, kstat.keepalive_hist[i]);
+	len += sprintf(page + len, "\n");
+#undef P
+
+	return len;
+}
 static int kstat_read_proc(char *page, char **start, off_t off,
 				 int count, int *eof, void *data)
 {
@@ -329,6 +389,8 @@
 		kstat.context_swtch,
 		xtime.tv_sec - jif / HZ,
 		total_forks);
+
+	len += print_tux_procinfo(page+len);
 
 	return proc_calc_metrics(page, start, off, count, eof, len);
 }
diff -urN tux-ref/include/linux/kernel_stat.h tux/include/linux/kernel_stat.h
--- tux-ref/include/linux/kernel_stat.h	Thu Apr 18 04:08:37 2002
+++ tux/include/linux/kernel_stat.h	Thu Apr 18 04:10:03 2002
@@ -30,6 +30,53 @@
 	unsigned int irqs[NR_CPUS][NR_IRQS];
 #endif
 	unsigned int context_swtch;
+	unsigned int context_swtch_cross;
+	unsigned int nr_free_pending;
+	unsigned int nr_allocated;
+	unsigned int nr_idle_input_pending;
+	unsigned int nr_output_space_pending;
+	unsigned int nr_work_pending;
+	unsigned int nr_input_pending;
+	unsigned int nr_cachemiss_pending;
+	unsigned int nr_secondary_pending;
+	unsigned int nr_output_pending;
+	unsigned int nr_redirect_pending;
+	unsigned int nr_postpone_pending;
+	unsigned int nr_finish_pending;
+	unsigned int nr_userspace_pending;
+	unsigned int static_lookup_cachemisses;
+	unsigned int static_sendfile_cachemisses;
+	unsigned int user_lookup_cachemisses;
+	unsigned int user_fetch_cachemisses;
+	unsigned int user_sendobject_cachemisses;
+	unsigned int user_sendobject_write_misses;
+	unsigned int user_sendbuf_cachemisses;
+	unsigned int user_sendbuf_write_misses;
+#define URL_HIST_SIZE 1000
+	unsigned int url_hist_hits[URL_HIST_SIZE];
+	unsigned int url_hist_misses[URL_HIST_SIZE];
+	unsigned int input_fastpath;
+	unsigned int input_slowpath;
+	unsigned int inputqueue_got_packet;
+	unsigned int inputqueue_no_packet;
+	unsigned int nr_keepalive_optimized;
+
+	unsigned int parse_static_incomplete;
+	unsigned int parse_static_redirect;
+	unsigned int parse_static_cachemiss;
+	unsigned int parse_static_nooutput;
+	unsigned int parse_static_normal;
+	unsigned int parse_dynamic_incomplete;
+	unsigned int parse_dynamic_redirect;
+	unsigned int parse_dynamic_cachemiss;
+	unsigned int parse_dynamic_nooutput;
+	unsigned int parse_dynamic_normal;
+	unsigned int complete_parsing;
+
+	unsigned int nr_keepalive_reqs;
+	unsigned int nr_nonkeepalive_reqs;
+#define KEEPALIVE_HIST_SIZE 100
+	unsigned int keepalive_hist[KEEPALIVE_HIST_SIZE];
 };
 
 extern struct kernel_stat kstat;