filesetup: add direct=1 failure warning to layout
[fio.git] / filesetup.c
index 9335dcd..a6a94ee 100644 (file)
@@ -15,6 +15,7 @@
 #include "os/os.h"
 #include "hash.h"
 #include "lib/axmap.h"
 #include "os/os.h"
 #include "hash.h"
 #include "lib/axmap.h"
+#include "lib/memalign.h"
 
 #ifdef CONFIG_LINUX_FALLOCATE
 #include <linux/falloc.h>
 
 #ifdef CONFIG_LINUX_FALLOCATE
 #include <linux/falloc.h>
@@ -38,12 +39,76 @@ static inline void clear_error(struct thread_data *td)
        td->verror[0] = '\0';
 }
 
        td->verror[0] = '\0';
 }
 
+static inline int native_fallocate(struct thread_data *td, struct fio_file *f)
+{
+       bool success;
+
+       success = fio_fallocate(f, 0, f->real_file_size);
+       dprint(FD_FILE, "native fallocate of file %s size %llu was "
+                       "%ssuccessful\n", f->file_name,
+                       (unsigned long long) f->real_file_size,
+                       !success ? "un": "");
+
+       if (success)
+               return 0;
+
+       if (errno == ENOSYS)
+               dprint(FD_FILE, "native fallocate is not implemented\n");
+
+       return -1;
+}
+
+static void fallocate_file(struct thread_data *td, struct fio_file *f)
+{
+       int r;
+
+       if (td->o.fill_device)
+               return;
+
+       switch (td->o.fallocate_mode) {
+       case FIO_FALLOCATE_NATIVE:
+               r = native_fallocate(td, f);
+               if (r != 0 && errno != ENOSYS)
+                       log_err("fio: native_fallocate call failed: %s\n",
+                                       strerror(errno));
+               break;
+       case FIO_FALLOCATE_NONE:
+               break;
+#ifdef CONFIG_POSIX_FALLOCATE
+       case FIO_FALLOCATE_POSIX:
+               dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
+                                f->file_name,
+                                (unsigned long long) f->real_file_size);
+
+               r = posix_fallocate(f->fd, 0, f->real_file_size);
+               if (r > 0)
+                       log_err("fio: posix_fallocate fails: %s\n", strerror(r));
+               break;
+#endif /* CONFIG_POSIX_FALLOCATE */
+#ifdef CONFIG_LINUX_FALLOCATE
+       case FIO_FALLOCATE_KEEP_SIZE:
+               dprint(FD_FILE, "fallocate(FALLOC_FL_KEEP_SIZE) "
+                               "file %s size %llu\n", f->file_name,
+                               (unsigned long long) f->real_file_size);
+
+               r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0, f->real_file_size);
+               if (r != 0)
+                       td_verror(td, errno, "fallocate");
+
+               break;
+#endif /* CONFIG_LINUX_FALLOCATE */
+       default:
+               log_err("fio: unknown fallocate mode: %d\n", td->o.fallocate_mode);
+               assert(0);
+       }
+}
+
 /*
  * Leaves f->fd open on success, caller must close
  */
 static int extend_file(struct thread_data *td, struct fio_file *f)
 {
 /*
  * Leaves f->fd open on success, caller must close
  */
 static int extend_file(struct thread_data *td, struct fio_file *f)
 {
-       int r, new_layout = 0, unlink_file = 0, flags;
+       int new_layout = 0, unlink_file = 0, flags;
        unsigned long long left;
        unsigned int bs;
        char *b = NULL;
        unsigned long long left;
        unsigned int bs;
        char *b = NULL;
@@ -82,6 +147,8 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
                flags |= O_CREAT;
        if (new_layout)
                flags |= O_TRUNC;
                flags |= O_CREAT;
        if (new_layout)
                flags |= O_TRUNC;
+       if (td->o.odirect)
+               flags |= OS_O_DIRECT;
 
 #ifdef WIN32
        flags |= _O_BINARY;
 
 #ifdef WIN32
        flags |= _O_BINARY;
@@ -95,48 +162,18 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
                if (err == ENOENT && !td->o.allow_create)
                        log_err("fio: file creation disallowed by "
                                        "allow_file_create=0\n");
                if (err == ENOENT && !td->o.allow_create)
                        log_err("fio: file creation disallowed by "
                                        "allow_file_create=0\n");
-               else
+               else {
+                       if (err == EINVAL && (flags & OS_O_DIRECT))
+                               log_err("fio: looks like your filesystem "
+                                       "does not support "
+                                       "direct=1/buffered=0\n");
+
                        td_verror(td, err, "open");
                        td_verror(td, err, "open");
+               }
                return 1;
        }
 
                return 1;
        }
 
-#ifdef CONFIG_POSIX_FALLOCATE
-       if (!td->o.fill_device) {
-               switch (td->o.fallocate_mode) {
-               case FIO_FALLOCATE_NONE:
-                       break;
-               case FIO_FALLOCATE_POSIX:
-                       dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
-                                f->file_name,
-                                (unsigned long long) f->real_file_size);
-
-                       r = posix_fallocate(f->fd, 0, f->real_file_size);
-                       if (r > 0) {
-                               log_err("fio: posix_fallocate fails: %s\n",
-                                               strerror(r));
-                       }
-                       break;
-#ifdef CONFIG_LINUX_FALLOCATE
-               case FIO_FALLOCATE_KEEP_SIZE:
-                       dprint(FD_FILE,
-                               "fallocate(FALLOC_FL_KEEP_SIZE) "
-                               "file %s size %llu\n", f->file_name,
-                               (unsigned long long) f->real_file_size);
-
-                       r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
-                                       f->real_file_size);
-                       if (r != 0)
-                               td_verror(td, errno, "fallocate");
-
-                       break;
-#endif /* CONFIG_LINUX_FALLOCATE */
-               default:
-                       log_err("fio: unknown fallocate mode: %d\n",
-                               td->o.fallocate_mode);
-                       assert(0);
-               }
-       }
-#endif /* CONFIG_POSIX_FALLOCATE */
+       fallocate_file(td, f);
 
        /*
         * If our jobs don't require regular files initially, we're done.
 
        /*
         * If our jobs don't require regular files initially, we're done.
@@ -164,13 +201,15 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
        if (bs > left)
                bs = left;
 
        if (bs > left)
                bs = left;
 
-       b = malloc(bs);
+       b = fio_memalign(page_size, bs);
        if (!b) {
        if (!b) {
-               td_verror(td, errno, "malloc");
+               td_verror(td, errno, "fio_memalign");
                goto err;
        }
 
        while (left && !td->terminate) {
                goto err;
        }
 
        while (left && !td->terminate) {
+               ssize_t r;
+
                if (bs > left)
                        bs = left;
 
                if (bs > left)
                        bs = left;
 
@@ -217,14 +256,14 @@ static int extend_file(struct thread_data *td, struct fio_file *f)
                        f->io_size = f->real_file_size;
        }
 
                        f->io_size = f->real_file_size;
        }
 
-       free(b);
+       fio_memfree(b, bs);
 done:
        return 0;
 err:
        close(f->fd);
        f->fd = -1;
        if (b)
 done:
        return 0;
 err:
        close(f->fd);
        f->fd = -1;
        if (b)
-               free(b);
+               fio_memfree(b, bs);
        return 1;
 }
 
        return 1;
 }
 
@@ -235,7 +274,11 @@ static int pre_read_file(struct thread_data *td, struct fio_file *f)
        unsigned int bs;
        char *b;
 
        unsigned int bs;
        char *b;
 
-       if (td_ioengine_flagged(td, FIO_PIPEIO))
+       if (td_ioengine_flagged(td, FIO_PIPEIO) ||
+           td_ioengine_flagged(td, FIO_NOIO))
+               return 0;
+
+       if (f->filetype == FIO_TYPE_CHAR)
                return 0;
 
        if (!fio_file_open(f)) {
                return 0;
 
        if (!fio_file_open(f)) {
@@ -493,8 +536,6 @@ static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
                }
                if (ret < 0)
                        errval = errno;
                }
                if (ret < 0)
                        errval = errno;
-               else if (ret) /* probably not supported */
-                       errval = ret;
        } else if (f->filetype == FIO_TYPE_CHAR ||
                   f->filetype == FIO_TYPE_PIPE) {
                dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
        } else if (f->filetype == FIO_TYPE_CHAR ||
                   f->filetype == FIO_TYPE_PIPE) {
                dprint(FD_IO, "invalidate not supported %s\n", f->file_name);
@@ -829,12 +870,42 @@ static unsigned long long get_fs_free_counts(struct thread_data *td)
 uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
 {
        struct thread_options *o = &td->o;
 uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
 {
        struct thread_options *o = &td->o;
+       unsigned long long align_bs;
+       unsigned long long offset;
 
        if (o->file_append && f->filetype == FIO_TYPE_FILE)
                return f->real_file_size;
 
 
        if (o->file_append && f->filetype == FIO_TYPE_FILE)
                return f->real_file_size;
 
-       return td->o.start_offset +
-               td->subjob_number * td->o.offset_increment;
+       if (o->start_offset_percent > 0) {
+               /*
+                * if blockalign is provided, find the min across read, write,
+                * and trim
+                */
+               if (fio_option_is_set(o, ba)) {
+                       align_bs = (unsigned long long) min(o->ba[DDIR_READ], o->ba[DDIR_WRITE]);
+                       align_bs = min((unsigned long long) o->ba[DDIR_TRIM], align_bs);
+               } else {
+                       /* else take the minimum block size */
+                       align_bs = td_min_bs(td);
+               }
+
+               /* calculate the raw offset */
+               offset = (f->real_file_size * o->start_offset_percent / 100) +
+                       (td->subjob_number * o->offset_increment);
+
+               /*
+                * block align the offset at the next available boundary at
+                * ceiling(offset / align_bs) * align_bs
+                */
+               offset = (offset / align_bs + (offset % align_bs != 0)) * align_bs;
+
+       } else {
+               /* start_offset_percent not set */
+               offset = o->start_offset +
+                               td->subjob_number * o->offset_increment;
+       }
+
+       return offset;
 }
 
 /*
 }
 
 /*
@@ -982,7 +1053,14 @@ int setup_files(struct thread_data *td)
                        total_size = -1ULL;
                else {
                         if (o->size_percent) {
                        total_size = -1ULL;
                else {
                         if (o->size_percent) {
-                               f->io_size = (f->io_size * o->size_percent) / 100;
+                               uint64_t file_size;
+
+                               file_size = f->io_size + f->file_offset;
+                               f->io_size = (file_size *
+                                             o->size_percent) / 100;
+                               if (f->io_size > (file_size - f->file_offset))
+                                       f->io_size = file_size - f->file_offset;
+
                                f->io_size -= (f->io_size % td_min_bs(td));
                        }
                        total_size += f->io_size;
                                f->io_size -= (f->io_size % td_min_bs(td));
                        }
                        total_size += f->io_size;
@@ -1118,10 +1196,11 @@ int pre_read_files(struct thread_data *td)
        dprint(FD_FILE, "pre_read files\n");
 
        for_each_file(td, f, i) {
        dprint(FD_FILE, "pre_read files\n");
 
        for_each_file(td, f, i) {
-               pre_read_file(td, f);
+               if (pre_read_file(td, f))
+                       return -1;
        }
 
        }
 
-       return 1;
+       return 0;
 }
 
 static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
 }
 
 static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)