1 files changed, 126 insertions, 0 deletions
diff --git a/btt/bt_timeline.c b/btt/bt_timeline.c
new file mode 100644
index 0000000..24dafc8
--- /dev/null
+++ b/btt/bt_timeline.c
@@ -0,0 +1,126 @@
+/*
+ * blktrace output analysis: generate a timeline & gather statistics
+ *
+ * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <time.h>
+#include "globals.h"
+
+char bt_timeline_version[] = "2.08";
+
+char *devices, *exes, *input_name, *output_name, *seek_name, *bno_dump_name;
+char *d2c_name, *q2c_name, *per_io_name, *unplug_hist_name;
+char *sps_name, *aqd_name, *q2d_name, *per_io_trees;
+FILE *rngs_ofp, *avgs_ofp, *xavgs_ofp, *per_io_ofp, *msgs_ofp;
+int verbose, done, time_bounded, output_all_data, seek_absolute;
+int easy_parse_avgs, ignore_remaps;
+double t_astart, t_aend;
+unsigned long n_traces;
+struct avgs_info all_avgs;
+unsigned int n_devs;
+time_t genesis, last_vtrace;
+LIST_HEAD(all_devs);
+LIST_HEAD(all_procs);
+LIST_HEAD(all_ios);
+LIST_HEAD(free_ios);
+LIST_HEAD(free_bilinks);
+__u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS];
+
+double plat_freq = 0.0;
+double range_delta = 0.1;
+__u64 last_q = (__u64)-1;
+
+struct region_info all_regions = {
+	.qranges = LIST_HEAD_INIT(all_regions.qranges),
+	.cranges = LIST_HEAD_INIT(all_regions.cranges),
+};
+
+int process(void);
+
+int main(int argc, char *argv[])
+{
+	handle_args(argc, argv);
+
+	init_dev_heads();
+	iostat_init();
+	if (process() || output_avgs(avgs_ofp) || output_ranges(rngs_ofp))
+		return 1;
+
+	if (iostat_ofp) {
+		fprintf(iostat_ofp, "\n");
+		iostat_dump_stats(iostat_last_stamp, 1);
+	}
+
+	if (msgs_ofp != stdout)
+		fclose(msgs_ofp);
+	if (rngs_ofp != stdout)
+		fclose(rngs_ofp);
+	if (avgs_ofp != stdout)
+		fclose(avgs_ofp);
+	if (xavgs_ofp)
+		fclose(xavgs_ofp);
+
+	dip_cleanup();
+	dev_map_exit();
+	dip_exit();
+	pip_exit();
+	io_free_all();
+	region_exit(&all_regions);
+	clean_allocs();
+
+	return 0;
+}
+
+static inline double tv2dbl(struct timeval *tv)
+{
+	return (double)tv->tv_sec + (((double)tv->tv_usec) / (1000.0 * 1000.0));
+}
+
+int process(void)
+{
+	int ret = 0;
+	struct io *iop = io_alloc();
+	struct timeval tvs, tve;
+
+	genesis = last_vtrace = time(NULL);
+	gettimeofday(&tvs, NULL);
+	while (!done && next_trace(&iop->t, &iop->pdu)) {
+		add_trace(iop);
+		iop = io_alloc();
+	}
+
+	io_release(iop);
+	gettimeofday(&tve, NULL);
+
+	if (verbose) {
+		double tps, dt_input = tv2dbl(&tve) - tv2dbl(&tvs);
+
+		tps = (double)n_traces / dt_input;
+		printf("\r                                        "
+		       "                                        \r");
+		printf("%10lu traces @ %.1lf Ktps in %.6lf seconds\n",
+			n_traces, tps/1000.0,
+			dt_input);
+	}
+
+	return ret;
+}