X-Git-Url: https://git.lttng.org/?p=lttngtop.git;a=blobdiff_plain;f=src%2Fcursesdisplay.c;h=02764dd19976996f13fb1f11a580531aa3285b60;hp=af09cb2df1280a7bb1292d988ad052ca83998c84;hb=33572a17ebf19098e1f1d3f1088e000e276eec60;hpb=d26643ed7ca126bc2cb88970270d8867e1546e1b

diff --git a/src/cursesdisplay.c b/src/cursesdisplay.c
index af09cb2..02764dd 100644
--- a/src/cursesdisplay.c
+++ b/src/cursesdisplay.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Julien Desfossez
+ * Copyright (C) 2011-2012 Julien Desfossez
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License Version 2 as
@@ -38,11 +38,12 @@ sem_t update_display_sem;
 
 char *termtype;
 WINDOW *footer, *header, *center, *status;
-WINDOW *perf_panel_window = NULL;
-PANEL *perf_panel, *main_panel;
+WINDOW *pref_panel_window = NULL;
+PANEL *pref_panel, *main_panel;
 
-int perf_panel_visible = 0;
-int perf_line_selected = 0;
+int pref_panel_visible = 0;
+int pref_line_selected = 0;
+int pref_current_sort = 0;
 
 int last_display_index, currently_displayed_index;
 
@@ -57,7 +58,7 @@ char log_lines[MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES];
 
 int max_elements = 80;
 
-int toggle_threads = -1;
+int toggle_threads = 1;
 int toggle_pause = -1;
 
 int max_center_lines;
@@ -65,15 +66,23 @@ GPtrArray *selected_processes;
 
 pthread_t keyboard_thread;
 
+struct header_view cputopview[4];
+struct header_view iostreamtopview[3];
+struct header_view fileview[3];
+
 void reset_ncurses()
 {
 	curs_set(1);
 	endwin();
-	exit(0);
+	quit = 1;
+	sem_post(&pause_sem);
+	sem_post(&timer);
+	sem_post(&goodtodisplay);
 }
 
 static void handle_sigterm(int signal)
 {
+	pthread_cancel(keyboard_thread);
 	reset_ncurses();
 }
 
@@ -114,6 +123,7 @@ void init_screen()
 		define_key("\033[17;2~", KEY_F(18));
 	}
 	signal(SIGTERM, handle_sigterm);
+	signal(SIGINT, handle_sigterm);
 	mousemask(BUTTON1_CLICKED, NULL);
 	refresh();
 }
@@ -223,6 +233,8 @@ int process_selected(struct processtop *process)
 
 	for (i = 0; i < selected_processes->len; i++) {
 		stored_process = g_ptr_array_index(selected_processes, i);
+		if (!stored_process)
+			return 0;
 		if (stored_process->tid == process->tid)
 			return 1;
 	}
@@ -231,11 +243,21 @@ int process_selected(struct processtop *process)
 
 void update_selected_processes()
 {
+	int i;
+	struct processtop *stored_process;
+
 	if (process_selected(selected_process)) {
-		g_ptr_array_remove(selected_processes, selected_process);
-		print_log("Process removed");
+		for (i = 0; i < selected_processes->len; i++) {
+			stored_process = g_ptr_array_index(selected_processes, i);
+			if (!stored_process)
+				return;
+			if (stored_process->tid == selected_process->tid)
+				g_ptr_array_remove(selected_processes,
+						stored_process);
+			print_log("Process removed");
+		}
 	} else {
-		g_ptr_array_add(selected_processes, selected_process);
+			g_ptr_array_add(selected_processes, selected_process);
 		print_log("Process added");
 	}
 }
@@ -263,8 +285,9 @@ void update_footer()
 	print_key(footer, "F4", "IOTop  ", current_view == iostream);
 	print_key(footer, "Enter", "Details  ", current_view == process_details);
 	print_key(footer, "Space", "Highlight  ", 0);
-	print_key(footer, "q", "Quit | ", 0);
-	print_key(footer, "P", "Perf Pref  ", 0);
+	print_key(footer, "q", "Quit ", 0);
+	print_key(footer, "r", "Pref  ", 0);
+	print_key(footer, "t", "Threads  ", toggle_threads);
 	print_key(footer, "p", "Pause  ", toggle_pause);
 
 	wrefresh(footer);
@@ -284,23 +307,6 @@ void basic_header()
 	wrefresh(header);
 }
 
-struct tm format_timestamp(uint64_t timestamp)
-{
-	struct tm tm;
-	uint64_t ts_sec = 0, ts_nsec;
-	time_t time_s;
-
-	ts_nsec = timestamp;
-	ts_sec += ts_nsec / NSEC_PER_SEC;
-	ts_nsec = ts_nsec % NSEC_PER_SEC;
-
-	time_s = (time_t) ts_sec;
-
-	localtime_r(&time_s, &tm);
-
-	return tm;
-}
-
 static void scale_unit(uint64_t bytes, char *ret)
 {
 	if (bytes >= 1000000000)
@@ -312,6 +318,7 @@ static void scale_unit(uint64_t bytes, char *ret)
 	else
 		sprintf(ret, "%" PRIu64, bytes);
 }
+
 uint64_t total_io()
 {
 	int i;
@@ -374,6 +381,127 @@ gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
 	return -1;
 }
 
+gint sort_by_tid_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct processtop *n1 = *(struct processtop **)p1;
+	struct processtop *n2 = *(struct processtop **)p2;
+	unsigned long totaln1 = n1->tid;
+	unsigned long totaln2 = n2->tid;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_pid_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct processtop *n1 = *(struct processtop **)p1;
+	struct processtop *n2 = *(struct processtop **)p2;
+	unsigned long totaln1 = n1->pid;
+	unsigned long totaln2 = n2->pid;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_process_read_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct processtop *n1 = *(struct processtop **)p1;
+	struct processtop *n2 = *(struct processtop **)p2;
+	unsigned long totaln1 = n1->fileread;
+	unsigned long totaln2 = n2->fileread;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_process_write_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct processtop *n1 = *(struct processtop **)p1;
+	struct processtop *n2 = *(struct processtop **)p2;
+	unsigned long totaln1 = n1->filewrite;
+	unsigned long totaln2 = n2->filewrite;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_process_total_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct processtop *n1 = *(struct processtop **)p1;
+	struct processtop *n2 = *(struct processtop **)p2;
+	unsigned long totaln1 = n1->totalfilewrite + n1->totalfileread;
+	unsigned long totaln2 = n2->totalfilewrite + n2->totalfileread;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_file_read_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct files *n1 = *(struct files **)p1;
+	struct files *n2 = *(struct files **)p2;
+	unsigned long totaln1;
+	unsigned long totaln2;
+
+	totaln1 = n1->read;
+	totaln2 = n2->read;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_file_write_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct files *n1 = *(struct files **)p1;
+	struct files *n2 = *(struct files **)p2;
+	unsigned long totaln1;
+	unsigned long totaln2;
+
+	totaln1 = n1->write;
+	totaln2 = n2->write;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
+gint sort_by_file_fd_desc(gconstpointer p1, gconstpointer p2)
+{
+	struct files *n1 = *(struct files **)p1;
+	struct files *n2 = *(struct files **)p2;
+	unsigned long totaln1;
+	unsigned long totaln2;
+
+	totaln1 = n1->fd;
+	totaln2 = n2->fd;
+
+	if (totaln1 < totaln2)
+		return 1;
+	if (totaln1 == totaln2)
+		return 0;
+	return -1;
+}
+
 gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
 {
 	struct processtop *n1 = *(struct processtop **)p1;
@@ -397,18 +525,34 @@ void update_cputop_display()
 	double maxcputime;
 	int nblinedisplayed = 0;
 	int current_line = 0;
+	int column;
 
 	elapsed = data->end - data->start;
 	maxcputime = elapsed * data->cpu_table->len / 100.0;
 
-	g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
+	if (cputopview[0].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
+	else if (cputopview[1].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_pid_desc);
+	else if (cputopview[2].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_tid_desc);
+	else if (cputopview[3].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
+	else
+		g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
 
 	set_window_title(center, "CPU Top");
 	wattron(center, A_BOLD);
-	mvwprintw(center, 1, 1, "CPU(%)");
-	mvwprintw(center, 1, 12, "TGID");
-	mvwprintw(center, 1, 22, "PID");
-	mvwprintw(center, 1, 32, "NAME");
+	column = 1;
+	for (i = 0; i < 4; i++) {
+		if (cputopview[i].sort) {
+			wattron(center, A_UNDERLINE);
+			pref_current_sort = i;
+		}
+		mvwprintw(center, 1, column, cputopview[i].title);
+		wattroff(center, A_UNDERLINE);
+		column += 10;
+	}
 	wattroff(center, A_BOLD);
 
 	max_center_lines = LINES - 5 - 7 - 1 - header_offset;
@@ -417,6 +561,9 @@ void update_cputop_display()
 	for (i = list_offset; i < data->process_table->len &&
 			nblinedisplayed < max_center_lines; i++) {
 		tmp = g_ptr_array_index(data->process_table, i);
+		if (tmp->pid != tmp->tid)
+			if (toggle_threads == -1)
+				continue;
 
 		if (process_selected(tmp)) {
 			wattron(center, COLOR_PAIR(6));
@@ -430,12 +577,12 @@ void update_cputop_display()
 		/* CPU(%) */
 		mvwprintw(center, current_line + header_offset, 1, "%1.2f",
 				tmp->totalcpunsec / maxcputime);
-		/* TGID */
-		mvwprintw(center, current_line + header_offset, 12, "%d", tmp->pid);
 		/* PID */
-		mvwprintw(center, current_line + header_offset, 22, "%d", tmp->tid);
+		mvwprintw(center, current_line + header_offset, 11, "%d", tmp->pid);
+		/* TID */
+		mvwprintw(center, current_line + header_offset, 21, "%d", tmp->tid);
 		/* NAME */
-		mvwprintw(center, current_line + header_offset, 32, "%s", tmp->comm);
+		mvwprintw(center, current_line + header_offset, 31, "%s", tmp->comm);
 		wattroff(center, COLOR_PAIR(6));
 		wattroff(center, COLOR_PAIR(5));
 		nblinedisplayed++;
@@ -482,7 +629,8 @@ gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
 void print_key_title(char *key, int line)
 {
 	wattron(center, A_BOLD);
-	mvwprintw(center, line, 1, "%s\t", key);
+	mvwprintw(center, line, 1, "%s", key);
+	mvwprintw(center, line, 30, " ");
 	wattroff(center, A_BOLD);
 }
 
@@ -494,6 +642,13 @@ void update_process_details()
 	struct files *file_tmp;
 	int i, j = 0;
 	char unit[4];
+	char filename_buf[COLS];
+	int line = 1;
+	int column;
+	GPtrArray *newfilearray = g_ptr_array_new();
+	GHashTableIter iter;
+	struct perfcounter *perfn1, *perfn2;
+	gpointer key;
 
 	set_window_title(center, "Process details");
 
@@ -504,49 +659,87 @@ void update_process_details()
 	elapsed = data->end - data->start;
 	maxcputime = elapsed * data->cpu_table->len / 100.0;
 
-	print_key_title("Name", 1);
+	print_key_title("Name", line++);
 	wprintw(center, "%s", selected_process->comm);
-	print_key_title("TID", 2);
+	print_key_title("TID", line++);
 	wprintw(center, "%d", selected_process->tid);
 	if (!tmp) {
 		print_key_title("Does not exit at this time", 3);
 		return;
 	}
 
-	print_key_title("PID", 3);
+	print_key_title("PID", line++);
 	wprintw(center, "%d", tmp->pid);
-	print_key_title("PPID", 4);
+	print_key_title("PPID", line++);
 	wprintw(center, "%d", tmp->ppid);
-	print_key_title("CPU", 5);
+	print_key_title("CPU", line++);
 	wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
 
-	print_key_title("READ B/s", 6);
+	print_key_title("READ B/s", line++);
 	scale_unit(tmp->fileread, unit);
 	wprintw(center, "%s", unit);
 
-	print_key_title("WRITE B/s", 7);
+	print_key_title("WRITE B/s", line++);
 	scale_unit(tmp->filewrite, unit);
 	wprintw(center, "%s", unit);
 
+	g_hash_table_iter_init(&iter, global_perf_liszt);
+	while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
+		print_key_title((char *) key, line++);
+		perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
+		wprintw(center, "%d", perfn2 ? perfn2->count : 0);
+	}
+	line++;
+
 	wattron(center, A_BOLD);
-	mvwprintw(center, 8, 1, "FD");
-	mvwprintw(center, 8, 10, "READ");
-	mvwprintw(center, 8, 17, "WRITE");
-	mvwprintw(center, 8, 24, "FILENAME");
+	column = 1;
+	for (i = 0; i < 3; i++) {
+		if (fileview[i].sort) {
+			pref_current_sort = i;
+			wattron(center, A_UNDERLINE);
+		}
+		mvwprintw(center, line, column, fileview[i].title);
+		wattroff(center, A_UNDERLINE);
+		column += 10;
+	}
+	mvwprintw(center, line++, column, "FILENAME");
 	wattroff(center, A_BOLD);
 
+	/*
+	 * since the process_files_table array could contain NULL file structures,
+	 * and that the positions inside the array is important (it is the FD), we
+	 * need to create a temporary array that we can sort.
+	 */
 	for (i = 0; i < tmp->process_files_table->len; i++) {
-		file_tmp = get_file(tmp, i);
-		if (file_tmp != NULL) {
-			mvwprintw(center, 9 + j, 1, "%d", i);
-			scale_unit(file_tmp->read, unit);
-			mvwprintw(center, 9 + j, 10, "%s", unit);
-			scale_unit(file_tmp->write, unit);
-			mvwprintw(center, 9 + j, 17, "%s", unit);
-			mvwprintw(center, 9 + j, 24, "%s", file_tmp->name);
-			j++;
-		}
+		file_tmp = g_ptr_array_index(tmp->process_files_table, i);
+		if (file_tmp)
+			g_ptr_array_add(newfilearray, file_tmp);
+	}
+
+	if (fileview[0].sort == 1)
+		g_ptr_array_sort(newfilearray, sort_by_file_fd_desc);
+	else if (fileview[1].sort == 1)
+		g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
+	else if (fileview[2].sort == 1)
+		g_ptr_array_sort(newfilearray, sort_by_file_write_desc);
+	else
+		g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
+
+	for (i = selected_line; i < newfilearray->len &&
+			i < (selected_line + max_center_lines - line + 2); i++) {
+		file_tmp = g_ptr_array_index(newfilearray, i);
+		if (!file_tmp)
+			continue;
+		mvwprintw(center, line + j, 1, "%d", file_tmp->fd);
+		scale_unit(file_tmp->read, unit);
+		mvwprintw(center, line + j, 11, "%s", unit);
+		scale_unit(file_tmp->write, unit);
+		mvwprintw(center, line + j, 21, "%s", unit);
+		snprintf(filename_buf, COLS - 25, "%s", file_tmp->name);
+		mvwprintw(center, line + j, 31, "%s", filename_buf);
+		j++;
 	}
+	g_ptr_array_free(newfilearray, TRUE);
 }
 
 void update_perf()
@@ -570,19 +763,23 @@ void update_perf()
 	mvwprintw(center, 1, 22, "NAME");
 
 	perf_row = 40;
-	g_hash_table_iter_init(&iter, data->perf_list);
+	g_hash_table_iter_init(&iter, global_perf_liszt);
 	while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 		if (perfn1->visible) {
+			if (perfn1->sort) {
+				/* pref_current_sort = i; */
+				wattron(center, A_UNDERLINE);
+			}
 			/* + 5 to strip the "perf_" prefix */
 			mvwprintw(center, 1, perf_row, "%s",
 					(char *) key + 5);
+			wattroff(center, A_UNDERLINE);
 			perf_row += 20;
 		}
 		if (perfn1->sort) {
 			perf_key = (char *) key;
 		}
 	}
-
 	wattroff(center, A_BOLD);
 
 	g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
@@ -590,6 +787,9 @@ void update_perf()
 	for (i = 0; i < data->process_table->len &&
 			nblinedisplayed < max_center_lines; i++) {
 		tmp = g_ptr_array_index(data->process_table, i);
+		if (tmp->pid != tmp->tid)
+			if (toggle_threads == -1)
+				continue;
 
 		if (process_selected(tmp)) {
 			wattron(center, COLOR_PAIR(6));
@@ -605,7 +805,7 @@ void update_perf()
 		mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 		mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 
-		g_hash_table_iter_init(&iter, data->perf_list);
+		g_hash_table_iter_init(&iter, global_perf_liszt);
 
 		perf_row = 40;
 		while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
@@ -628,21 +828,6 @@ void update_perf()
 	}
 }
 
-gint sort_by_ret_desc(gconstpointer p1, gconstpointer p2)
-{
-	struct processtop *n1 = *(struct processtop **)p1;
-	struct processtop *n2 = *(struct processtop **)p2;
-
-	unsigned long totaln1 = n1->totalfileread + n1->totalfilewrite;
-	unsigned long totaln2 = n2->totalfileread + n2->totalfilewrite;
-
-	if (totaln1 < totaln2)
-		return 1;
-	if (totaln1 == totaln2)
-		return 0;
-	return -1;
-}
-
 void update_iostream()
 {
 	int i;
@@ -652,22 +837,41 @@ void update_iostream()
 	int current_line = 0;
 	int total = 0;
 	char unit[4];
+	int column;
 
 	set_window_title(center, "IO Top");
 	wattron(center, A_BOLD);
 	mvwprintw(center, 1, 1, "PID");
 	mvwprintw(center, 1, 11, "TID");
 	mvwprintw(center, 1, 22, "NAME");
-	mvwprintw(center, 1, 40, "R (B/sec)");
-	mvwprintw(center, 1, 52, "W (B/sec)");
-	mvwprintw(center, 1, 64, "Total");
+	column = 40;
+	for (i = 0; i < 3; i++) {
+		if (iostreamtopview[i].sort) {
+			pref_current_sort = i;
+			wattron(center, A_UNDERLINE);
+		}
+		mvwprintw(center, 1, column, iostreamtopview[i].title);
+		wattroff(center, A_UNDERLINE);
+		column += 12;
+	}
 	wattroff(center, A_BOLD);
-
-	g_ptr_array_sort(data->process_table, sort_by_ret_desc);
+	wattroff(center, A_UNDERLINE);
+
+	if (iostreamtopview[0].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_process_read_desc);
+	else if (iostreamtopview[1].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_process_write_desc);
+	else if (iostreamtopview[2].sort == 1)
+		g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
+	else
+		g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 
 	for (i = list_offset; i < data->process_table->len &&
 			nblinedisplayed < max_center_lines; i++) {
 		tmp = g_ptr_array_index(data->process_table, i);
+		if (tmp->pid != tmp->tid)
+			if (toggle_threads == -1)
+				continue;
 
 		if (process_selected(tmp)) {
 			wattron(center, COLOR_PAIR(6));
@@ -739,73 +943,294 @@ void update_current_view()
 	sem_post(&update_display_sem);
 }
 
-void setup_perf_panel()
+void update_process_detail_sort(int *line_selected)
+{
+	int i;
+	int size;
+
+	size = 3;
+
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+
+	if (fileview[*line_selected].sort == 1)
+		fileview[*line_selected].reverse = 1;
+	for (i = 0; i < size; i++)
+		fileview[i].sort = 0;
+	fileview[*line_selected].sort = 1;
+}
+
+void update_process_detail_pref(int *line_selected, int toggle_view, int toggle_sort)
+{
+	int i;
+	int size;
+
+	if (!data)
+		return;
+	if (pref_panel_window) {
+		del_panel(pref_panel);
+		delwin(pref_panel_window);
+	}
+	size = 3;
+
+	pref_panel_window = create_window(size + 2, 30, 10, 10);
+	pref_panel = new_panel(pref_panel_window);
+
+	werase(pref_panel_window);
+	box(pref_panel_window, 0 , 0);
+	set_window_title(pref_panel_window, "Process Detail Preferences ");
+	wattron(pref_panel_window, A_BOLD);
+	mvwprintw(pref_panel_window, size + 1, 1,
+			" 's' : sort, space : toggle");
+	wattroff(pref_panel_window, A_BOLD);
+
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+	if (toggle_sort == 1) {
+		update_process_detail_sort(line_selected);
+		update_current_view();
+	}
+
+	for (i = 0; i < size; i++) {
+		if (i == *line_selected) {
+			wattron(pref_panel_window, COLOR_PAIR(5));
+			mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
+		}
+		if (fileview[i].sort == 1)
+			wattron(pref_panel_window, A_BOLD);
+		mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
+				fileview[i].title);
+		wattroff(pref_panel_window, A_BOLD);
+		wattroff(pref_panel_window, COLOR_PAIR(5));
+
+	}
+	update_panels();
+	doupdate();
+}
+
+void update_iostream_sort(int *line_selected)
+{
+	int i;
+	int size;
+
+	size = 3;
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+	if (iostreamtopview[*line_selected].sort == 1)
+		iostreamtopview[*line_selected].reverse = 1;
+	for (i = 0; i < size; i++)
+		iostreamtopview[i].sort = 0;
+	iostreamtopview[*line_selected].sort = 1;
+
+}
+
+void update_iostream_pref(int *line_selected, int toggle_view, int toggle_sort)
 {
+	int i;
 	int size;
+
 	if (!data)
 		return;
-	if (perf_panel_window) {
-		del_panel(perf_panel);
-		delwin(perf_panel_window);
+	if (pref_panel_window) {
+		del_panel(pref_panel);
+		delwin(pref_panel_window);
 	}
-	size = g_hash_table_size(data->perf_list);
-	perf_panel_window = create_window(size + 2, 30, 10, 10);
-	perf_panel = new_panel(perf_panel_window);
-	perf_panel_visible = 0;
-	hide_panel(perf_panel);
+	size = 3;
+
+	pref_panel_window = create_window(size + 2, 30, 10, 10);
+	pref_panel = new_panel(pref_panel_window);
+
+	werase(pref_panel_window);
+	box(pref_panel_window, 0 , 0);
+	set_window_title(pref_panel_window, "IOTop Preferences ");
+	wattron(pref_panel_window, A_BOLD);
+	mvwprintw(pref_panel_window, size + 1, 1,
+			" 's' : sort, space : toggle");
+	wattroff(pref_panel_window, A_BOLD);
+
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+	if (toggle_sort == 1) {
+		update_iostream_sort(line_selected);
+		update_current_view();
+	}
+
+	for (i = 0; i < size; i++) {
+		if (i == *line_selected) {
+			wattron(pref_panel_window, COLOR_PAIR(5));
+			mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
+		}
+		if (iostreamtopview[i].sort == 1)
+			wattron(pref_panel_window, A_BOLD);
+		mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
+				iostreamtopview[i].title);
+		wattroff(pref_panel_window, A_BOLD);
+		wattroff(pref_panel_window, COLOR_PAIR(5));
+
+	}
+	update_panels();
+	doupdate();
 }
 
-void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
+void update_cpu_sort(int *line_selected)
+{
+	int i;
+	int size = 3;
+
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+
+	/* special case, we don't support sorting by procname for now */
+	if (*line_selected != 3) {
+		if (cputopview[*line_selected].sort == 1)
+			cputopview[*line_selected].reverse = 1;
+		for (i = 0; i < size; i++)
+			cputopview[i].sort = 0;
+		cputopview[*line_selected].sort = 1;
+	}
+}
+
+void update_cpu_pref(int *line_selected, int toggle_view, int toggle_sort)
+{
+	int i;
+	int size;
+
+	if (!data)
+		return;
+	if (pref_panel_window) {
+		del_panel(pref_panel);
+		delwin(pref_panel_window);
+	}
+	size = 4;
+
+	pref_panel_window = create_window(size + 2, 30, 10, 10);
+	pref_panel = new_panel(pref_panel_window);
+
+	werase(pref_panel_window);
+	box(pref_panel_window, 0 , 0);
+	set_window_title(pref_panel_window, "CPUTop Preferences ");
+	wattron(pref_panel_window, A_BOLD);
+	mvwprintw(pref_panel_window, size + 1, 1,
+			" 's' : sort, space : toggle");
+	wattroff(pref_panel_window, A_BOLD);
+
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+	if (toggle_sort == 1) {
+		update_cpu_sort(line_selected);
+		update_current_view();
+	}
+
+	for (i = 0; i < size; i++) {
+		if (i == *line_selected) {
+			wattron(pref_panel_window, COLOR_PAIR(5));
+			mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
+		}
+		if (cputopview[i].sort == 1)
+			wattron(pref_panel_window, A_BOLD);
+		mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
+				cputopview[i].title);
+		wattroff(pref_panel_window, A_BOLD);
+		wattroff(pref_panel_window, COLOR_PAIR(5));
+
+	}
+	update_panels();
+	doupdate();
+}
+
+void update_perf_sort(int *line_selected)
 {
 	int i;
 	struct perfcounter *perf;
 	GList *perflist;
+	int size;
+
+	size = g_hash_table_size(global_perf_liszt);
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
+
+	i = 0;
+	perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
+	while (perflist) {
+		perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
+		if (i != *line_selected)
+			perf->sort = 0;
+		else
+			perf->sort = 1;
+		i++;
+		perflist = g_list_next(perflist);
+	}
+}
+
+void update_perf_pref(int *line_selected, int toggle_view, int toggle_sort)
+{
+	int i;
+	struct perfcounter *perf;
+	GList *perflist;
+	int size;
 
 	if (!data)
 		return;
+	if (pref_panel_window) {
+		del_panel(pref_panel);
+		delwin(pref_panel_window);
+	}
+	size = g_hash_table_size(global_perf_liszt);
+
+	pref_panel_window = create_window(size + 2, 30, 10, 10);
+	pref_panel = new_panel(pref_panel_window);
+
+	werase(pref_panel_window);
+	box(pref_panel_window, 0 , 0);
+	set_window_title(pref_panel_window, "Perf Preferences ");
+	wattron(pref_panel_window, A_BOLD);
+	mvwprintw(pref_panel_window, g_hash_table_size(global_perf_liszt) + 1, 1,
+			" 's' : sort, space : toggle");
+	wattroff(pref_panel_window, A_BOLD);
 
-	werase(perf_panel_window);
-	box(perf_panel_window, 0 , 0);
-	set_window_title(perf_panel_window, "Perf Preferences ");
-	wattron(perf_panel_window, A_BOLD);
-	mvwprintw(perf_panel_window, g_hash_table_size(data->perf_list) + 1, 1,
-			" 's' to sort");
-	wattroff(perf_panel_window, A_BOLD);
+	if (*line_selected > (size - 1))
+		*line_selected = size - 1;
+	else if (*line_selected < 0)
+		*line_selected = 0;
 
 	if (toggle_sort == 1) {
-		i = 0;
-		perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
-		while (perflist) {
-			perf = g_hash_table_lookup(data->perf_list, perflist->data);
-			if (i != line_selected)
-				perf->sort = 0;
-			else
-				perf->sort = 1;
-			i++;
-			perflist = g_list_next(perflist);
-		}
+		update_perf_sort(line_selected);
 		update_current_view();
 	}
 
 	i = 0;
-	perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
+	perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
 	while (perflist) {
-		perf = g_hash_table_lookup(data->perf_list, perflist->data);
-		if (i == line_selected && toggle_view == 1) {
+		perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
+		if (i == *line_selected && toggle_view == 1) {
 			perf->visible = perf->visible == 1 ? 0:1;
 			update_current_view();
 		}
-		if (i == line_selected) {
-			wattron(perf_panel_window, COLOR_PAIR(5));
-			mvwhline(perf_panel_window, i + 1, 1, ' ', 30 - 2);
+		if (i == *line_selected) {
+			wattron(pref_panel_window, COLOR_PAIR(5));
+			mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
 		}
 		if (perf->sort == 1)
-			wattron(perf_panel_window, A_BOLD);
-		mvwprintw(perf_panel_window, i + 1, 1, "[%c] %s",
+			wattron(pref_panel_window, A_BOLD);
+		mvwprintw(pref_panel_window, i + 1, 1, "[%c] %s",
 				perf->visible == 1 ? 'x' : ' ',
 				(char *) perflist->data + 5);
-		wattroff(perf_panel_window, A_BOLD);
-		wattroff(perf_panel_window, COLOR_PAIR(5));
+		wattroff(pref_panel_window, A_BOLD);
+		wattroff(pref_panel_window, COLOR_PAIR(5));
 		i++;
 		perflist = g_list_next(perflist);
 	}
@@ -813,16 +1238,70 @@ void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
 	doupdate();
 }
 
-void toggle_perf_panel(void)
+int update_preference_panel(int *line_selected, int toggle_view, int toggle_sort)
 {
-	if (perf_panel_visible) {
-		hide_panel(perf_panel);
-		perf_panel_visible = 0;
+	int ret = 0;
+
+	switch(current_view) {
+		case perf:
+			update_perf_pref(line_selected, toggle_view, toggle_sort);
+			break;
+		case cpu:
+			update_cpu_pref(line_selected, toggle_view, toggle_sort);
+			break;
+		case iostream:
+			update_iostream_pref(line_selected, toggle_view, toggle_sort);
+			break;
+		case process_details:
+			update_process_detail_pref(line_selected, toggle_view, toggle_sort);
+			break;
+		default:
+			ret = -1;
+			break;
+	}
+
+	return ret;
+}
+
+int update_sort(int *line_selected)
+{
+	int ret = 0;
+
+	switch(current_view) {
+		case perf:
+			update_perf_sort(line_selected);
+			break;
+		case cpu:
+			update_cpu_sort(line_selected);
+			break;
+		case iostream:
+			update_iostream_sort(line_selected);
+			break;
+		case process_details:
+			update_process_detail_sort(line_selected);
+			break;
+		default:
+			ret = -1;
+			break;
+	}
+
+	return ret;
+}
+
+
+void toggle_pref_panel(void)
+{
+	int ret;
+
+	if (pref_panel_visible) {
+		hide_panel(pref_panel);
+		pref_panel_visible = 0;
 	} else {
-		setup_perf_panel();
-		update_perf_panel(perf_line_selected, 0, 0);
-		show_panel(perf_panel);
-		perf_panel_visible = 1;
+		ret = update_preference_panel(&pref_line_selected, 0, 0);
+		if (ret < 0)
+			return;
+		show_panel(pref_panel);
+		pref_panel_visible = 1;
 	}
 	update_panels();
 	doupdate();
@@ -862,11 +1341,11 @@ void *handle_keyboard(void *p)
 	while((ch = getch())) {
 		switch(ch) {
 		/* Move the cursor and scroll */
+		case 'j':
 		case KEY_DOWN:
-			if (perf_panel_visible) {
-				if (perf_line_selected < g_hash_table_size(data->perf_list) - 1)
-					perf_line_selected++;
-				update_perf_panel(perf_line_selected, 0, 0);
+			if (pref_panel_visible) {
+				pref_line_selected++;
+				update_preference_panel(&pref_line_selected, 0, 0);
 			} else {
 				if (selected_line < (max_center_lines - 1) &&
 						selected_line < max_elements - 1) {
@@ -882,11 +1361,12 @@ void *handle_keyboard(void *p)
 			break;
 		case KEY_NPAGE:
 			break;
+		case 'k':
 		case KEY_UP:
-			if (perf_panel_visible) {
-				if (perf_line_selected > 0)
-					perf_line_selected--;
-				update_perf_panel(perf_line_selected, 0, 0);
+			if (pref_panel_visible) {
+				if (pref_line_selected > 0)
+					pref_line_selected--;
+				update_preference_panel(&pref_line_selected, 0, 0);
 			} else {
 				if (selected_line > 0) {
 					selected_line--;
@@ -930,26 +1410,50 @@ void *handle_keyboard(void *p)
 			} else {
 				print_log("Manually moving forward");
 				sem_post(&timer);
-				/* we force to resume the refresh when moving forward */
-				if (toggle_pause > 0)
-					resume_display();
+				if (toggle_pause > 0) {
+					sem_post(&pause_sem);
+					update_current_view();
+					sem_wait(&pause_sem);
+				}
 			}
 
 			break;
 		case ' ':
-			if (perf_panel_visible) {
-				update_perf_panel(perf_line_selected, 1, 0);
+			if (pref_panel_visible) {
+				update_preference_panel(&pref_line_selected, 1, 0);
 			} else {
 				update_selected_processes();
 				update_current_view();
 			}
 			break;
 		case 's':
-			if (perf_panel_visible)
-				update_perf_panel(perf_line_selected, 0, 1);
+			if (pref_panel_visible)
+				update_preference_panel(&pref_line_selected, 0, 1);
+			break;
+		case '>':
+			/* perf uses a hashtable, it is ordered backward */
+			if (current_view == perf) {
+				pref_current_sort--;
+			} else if (!pref_panel_visible) {
+				pref_current_sort++;
+			}
+			update_sort(&pref_current_sort);
+			update_current_view();
+			break;
+		case '<':
+			/* perf uses a hashtable, it is ordered backward */
+			if (current_view == perf) {
+				pref_current_sort++;
+			} else if (!pref_panel_visible) {
+				pref_current_sort--;
+			}
+			update_sort(&pref_current_sort);
+			update_current_view();
 			break;
 
 		case 13: /* FIXME : KEY_ENTER ?? */
+			if (pref_panel_visible)
+				break;
 			if (current_view != process_details) {
 				previous_view = current_view;
 				current_view = process_details;
@@ -957,25 +1461,34 @@ void *handle_keyboard(void *p)
 				current_view = previous_view;
 				previous_view = process_details;
 			}
+			selected_line = 0;
 			update_current_view();
 			break;
 
 		case KEY_F(1):
+			if (pref_panel_visible)
+				toggle_pref_panel();
 			current_view = cpu;
 			selected_line = 0;
 			update_current_view();
 			break;
 		case KEY_F(2):
+			if (pref_panel_visible)
+				toggle_pref_panel();
 			current_view = cpu;
 			selected_line = 0;
 			update_current_view();
 			break;
 		case KEY_F(3):
+			if (pref_panel_visible)
+				toggle_pref_panel();
 			current_view = perf;
 			selected_line = 0;
 			update_current_view();
 			break;
 		case KEY_F(4):
+			if (pref_panel_visible)
+				toggle_pref_panel();
 			current_view = iostream;
 			selected_line = 0;
 			update_current_view();
@@ -983,6 +1496,8 @@ void *handle_keyboard(void *p)
 		case KEY_F(10):
 		case 'q':
 			reset_ncurses();
+			/* exit keyboard thread */
+			pthread_exit(0);
 			break;
 		case 't':
 			toggle_threads *= -1;
@@ -995,8 +1510,18 @@ void *handle_keyboard(void *p)
 				resume_display();
 			}
 			break;
-		case 'P':
-			toggle_perf_panel();
+		case 'r':
+			toggle_pref_panel();
+			break;
+		/* ESCAPE, but slow to process, don't know why */
+		case 27:
+			if (pref_panel_visible)
+				toggle_pref_panel();
+			else if (current_view == process_details) {
+				current_view = previous_view;
+				previous_view = process_details;
+			}
+			update_current_view();
 			break;
 		default:
 			if (data)
@@ -1008,10 +1533,30 @@ void *handle_keyboard(void *p)
 	return NULL;
 }
 
+void init_view_headers()
+{
+	cputopview[0].title = strdup("CPU(%)");
+	cputopview[0].sort = 1;
+	cputopview[1].title = strdup("PID");
+	cputopview[2].title = strdup("TID");
+	cputopview[3].title = strdup("NAME");
+
+	iostreamtopview[0].title = strdup("R (B/sec)");
+	iostreamtopview[1].title = strdup("W (B/sec)");
+	iostreamtopview[2].title = strdup("Total (B)");
+	iostreamtopview[2].sort = 1;
+
+	fileview[0].title = strdup("FD");
+	fileview[1].title = strdup("READ");
+	fileview[1].sort = 1;
+	fileview[2].title = strdup("WRITE");
+}
+
 void init_ncurses()
 {
 	selected_processes = g_ptr_array_new();
 	sem_init(&update_display_sem, 0, 1);
+	init_view_headers();
 	init_screen();
 
 	header = create_window(5, COLS - 1, 0, 0);
@@ -1022,7 +1567,6 @@ void init_ncurses()
 	print_log("Starting display");
 
 	main_panel = new_panel(center);
-	setup_perf_panel();
 
 	current_view = cpu;
 
@@ -1031,4 +1575,3 @@ void init_ncurses()
 
 	pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
 }
-