fio: support io_size=N% (N <= 100)

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index d382fa24195331c10c2b1cf015ee3007524f7853..e44f31c716a63eb12440da37fd50d3552db39e10 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -1139,6 +1139,8 @@ int setup_files(struct thread_data *td)
                if (f->io_size == -1ULL)
                        total_size = -1ULL;
                else {
+                       uint64_t io_size;
+
                         if (o->size_percent && o->size_percent != 100) {
                                uint64_t file_size;
 
@@ -1150,7 +1152,14 @@ int setup_files(struct thread_data *td)
 
                                f->io_size -= (f->io_size % td_min_bs(td));
                        }
-                       total_size += f->io_size;
+
+                       io_size = f->io_size;
+                       if (o->io_size_percent && o->io_size_percent != 100) {
+                               io_size *= o->io_size_percent;
+                               io_size /= 100;
+                       }
+
+                       total_size += io_size;
                }
 
                if (f->filetype == FIO_TYPE_FILE &&