Make histogram samples non-cumulative by tracking a linked-list
[fio.git] / stat.c
diff --git a/stat.c b/stat.c
index ef9fe7d..b0ce54d 100644 (file)
--- a/stat.c
+++ b/stat.c
@@ -2221,7 +2221,7 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                
                if (this_window >= iolog->hist_msec) {
                        unsigned int *io_u_plat;
-                       unsigned int *dst;
+                       struct io_u_plat_entry *dst;
 
                        /*
                         * Make a byte-for-byte copy of the latency histogram
@@ -2231,10 +2231,11 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                         * log file.
                         */
                        io_u_plat = (unsigned int *) td->ts.io_u_plat[ddir];
-                       dst = malloc(FIO_IO_U_PLAT_NR * sizeof(unsigned int));
-                       memcpy(dst, io_u_plat,
+                       dst = malloc(sizeof(struct io_u_plat_entry));
+                       memcpy(&(dst->io_u_plat), io_u_plat,
                                FIO_IO_U_PLAT_NR * sizeof(unsigned int));
-                       __add_log_sample(iolog, (unsigned long )dst, ddir, bs,
+                       flist_add(&dst->list, &hw->list.list);
+                       __add_log_sample(iolog, (unsigned long)dst, ddir, bs,
                                                elapsed, offset);
 
                        /*