diff --git a/ESP32/console_esp32.cpp b/ESP32/console_esp32.cpp
index 5b7a131..56127f6 100644
--- a/ESP32/console_esp32.cpp
+++ b/ESP32/console_esp32.cpp
@@ -108,7 +108,7 @@ void console_esp32::panel_update_thread()
 	pixels.show();
 
 	while(!stop_panel) {
-		vTaskDelay(20 / portTICK_PERIOD_MS);
+		vTaskDelay(100 / portTICK_PERIOD_MS);
 
 		try {
 			// note that these are approximately as there's no mutex on the emulation
diff --git a/ESP32/main.ino b/ESP32/main.ino
index 1c60cc3..058e257 100644
--- a/ESP32/main.ino
+++ b/ESP32/main.ino
@@ -16,6 +16,7 @@
 #include <sys/types.h>
 #endif
 #if defined(ESP32)
+#include "esp_clk.h"
 #include "esp_heap_caps.h"
 #endif
 
@@ -269,6 +270,8 @@ void setup() {
 	cs->println(format("GIT hash: %s", version_str));
 	cs->println("Build on: " __DATE__ " " __TIME__);
 
+	cs->println(format("# cores: %d, CPU frequency: %d Hz", SOC_CPU_CORES_NUM, esp_clk_cpu_freq()));
+
 #if defined(ESP32)
 	heap_caps_register_failed_alloc_callback(heap_caps_alloc_failed_hook);
 #endif
diff --git a/console.cpp b/console.cpp
index 82f92d3..ea1de78 100644
--- a/console.cpp
+++ b/console.cpp
@@ -290,6 +290,21 @@ void console::put_char(const char c)
 			debug_buffer.clear();
 		}
 
+		if (timestamps) {
+			char     buffer[32] { };
+			uint64_t timestamp = get_us() - start_ts;
+			uint64_t seconds   = timestamp / 1000000;
+
+			int len = snprintf(buffer, sizeof buffer, "%02d:%02d:%02d.%06d ",
+					int(seconds / 3600),
+					int((seconds / 60) % 60),
+					int(seconds % 60),
+					int(timestamp % 1000000));
+
+			for(int i=0; i<len; i++)
+				put_char_ll(buffer[i]);
+		}
+
 		ty++;
 	}
 	else if (c == 8) {  // backspace
diff --git a/console.h b/console.h
index a22b569..0f8e6ce 100644
--- a/console.h
+++ b/console.h
@@ -10,6 +10,8 @@
 #include <thread>
 #include <vector>
 
+#include "utils.h"
+
 #if defined(_WIN32)
 #include "win32.h"
 #endif
@@ -48,6 +50,8 @@ protected:
 	char                   *screen_buffer    { nullptr };
 	uint8_t                 tx               { 0 };
 	uint8_t                 ty               { 0 };
+	std::atomic_bool        timestamps       { false };
+	const uint64_t          start_ts         { get_us() };
 
 	const size_t            n_edit_lines_hist { 8 };  // maximum number of previous edit-lines
 	std::vector<std::string> edit_lines_hist;
@@ -75,6 +79,8 @@ public:
 	std::string  read_line(const std::string & prompt);
 	void         flush_input();
 
+	void         enable_timestamp(const bool state) { timestamps = state; }
+
 	void         emit_backspace();
 	void         put_char(const char c);
 	void         put_string(const std::string & what);
diff --git a/debugger.cpp b/debugger.cpp
index ed529d5..8b61e81 100644
--- a/debugger.cpp
+++ b/debugger.cpp
@@ -71,7 +71,7 @@ std::optional<disk_backend *> select_nbd_server(console *const cnsl)
 	if (port_str.empty())
 		return { };
 
-	disk_backend *d = new disk_backend_nbd(hostname, atoi(port_str.c_str()));
+	disk_backend *d = new disk_backend_nbd(hostname, std::stoi(port_str));
 	if (d->begin(false) == false) {
 		cnsl->put_string_lf("Cannot initialize NBD client");
 		delete d;
@@ -749,7 +749,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 				single_step = true;
 
 				if (parts.size() == 2)
-					n_single_step = atoi(parts[1].c_str());
+					n_single_step = std::stoi(parts[1]);
 				else
 					n_single_step = 1;
 
@@ -915,7 +915,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 					cnsl->put_string_lf("parameter missing");
 				else {
 					uint32_t addr = std::stoi(parts[1], nullptr, 8);
-					int      n    = parts.size() == 4 ? atoi(parts[3].c_str()) : 1;
+					int      n    = parts.size() == 4 ? std::stoi(parts[3]) : 1;
 
 					if (parts[2] != "p" && parts[2] != "v") {
 						cnsl->put_string_lf("expected p (physical address) or v (virtual address)");
@@ -1082,6 +1082,11 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 
 				continue;
 			}
+			else if (parts[0] == "pts" && parts.size() == 2) {
+				cnsl->enable_timestamp(std::stoi(parts[1]));
+
+				continue;
+			}
 			else if (cmd == "qi") {
 				show_queued_interrupts(cnsl, c);
 
@@ -1183,6 +1188,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 					"trace/t       - toggle tracing",
 					"setll x,y     - set loglevel: terminal,file",
 					"setsl x,y     - set syslog target: requires a hostname and a loglevel",
+					"pts x         - enable (1) / disable (0) timestamps",
 					"turbo         - toggle turbo mode (cannot be interrupted)",
 					"debug         - enable CPU debug mode",
 					"bt            - show backtrace - need to enable debug first",