struct windowsaio_data *wd;
};
-static BOOL timeout_expired(DWORD start_count, DWORD end_count);
-static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min,
- unsigned int max, const struct timespec *t);
-static struct io_u *fio_windowsaio_event(struct thread_data *td, int event);
-static int fio_windowsaio_queue(struct thread_data *td,
- struct io_u *io_u);
-static void fio_windowsaio_cleanup(struct thread_data *td);
static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter);
-static int fio_windowsaio_init(struct thread_data *td);
-static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f);
-static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f);
static int fio_windowsaio_init(struct thread_data *td)
{
}
}
- td->io_ops->data = wd;
+ td->io_ops_data = wd;
if (!rc) {
struct thread_ctx *ctx;
rc = 1;
}
- wd = td->io_ops->data;
+ wd = td->io_ops_data;
wd->iothread_running = TRUE;
wd->iocp = hFile;
if (!rc)
ctx = malloc(sizeof(struct thread_ctx));
- if (!rc && ctx == NULL)
- {
+ if (!rc && ctx == NULL) {
log_err("windowsaio: failed to allocate memory for thread context structure\n");
CloseHandle(hFile);
rc = 1;
}
- if (!rc)
- {
+ if (!rc) {
+ DWORD threadid;
+
ctx->iocp = hFile;
ctx->wd = wd;
- wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL);
- if (wd->iothread == NULL)
+ wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, &threadid);
+
+ if (wd->iothread != NULL)
+ fio_setaffinity(threadid, td->o.cpumask);
+ else
log_err("windowsaio: failed to create io completion thread\n");
}
{
struct windowsaio_data *wd;
- wd = td->io_ops->data;
+ wd = td->io_ops_data;
if (wd != NULL) {
wd->iothread_running = FALSE;
free(wd->aio_events);
free(wd);
- td->io_ops->data = NULL;
+ td->io_ops_data = NULL;
}
}
+static int windowsaio_invalidate_cache(struct fio_file *f)
+{
+ DWORD error;
+ DWORD isharemode = (FILE_SHARE_DELETE | FILE_SHARE_READ |
+ FILE_SHARE_WRITE);
+ HANDLE ihFile;
+ int rc = 0;
+
+ /*
+ * Encourage Windows to drop cached parts of a file by temporarily
+ * opening it for non-buffered access. Note: this will only work when
+ * the following is the only thing with the file open on the whole
+ * system.
+ */
+ dprint(FD_IO, "windowaio: attempt invalidate cache for %s\n",
+ f->file_name);
+ ihFile = CreateFile(f->file_name, 0, isharemode, NULL, OPEN_EXISTING,
+ FILE_FLAG_NO_BUFFERING, NULL);
+
+ if (ihFile != INVALID_HANDLE_VALUE) {
+ if (!CloseHandle(ihFile)) {
+ error = GetLastError();
+ log_info("windowsaio: invalidation fd close %s "
+ "failed: error %d\n", f->file_name, error);
+ rc = 1;
+ }
+ } else {
+ error = GetLastError();
+ if (error != ERROR_FILE_NOT_FOUND) {
+ log_info("windowsaio: cache invalidation of %s failed: "
+ "error %d\n", f->file_name, error);
+ rc = 1;
+ }
+ }
+
+ return rc;
+}
static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f)
{
/*
* Inform Windows whether we're going to be doing sequential or
- * random io so it can tune the Cache Manager
+ * random IO so it can tune the Cache Manager
*/
- if (td->o.td_ddir == TD_DDIR_READ ||
- td->o.td_ddir == TD_DDIR_WRITE)
- flags |= FILE_FLAG_SEQUENTIAL_SCAN;
- else
+ switch (td->o.fadvise_hint) {
+ case F_ADV_TYPE:
+ if (td_random(td))
+ flags |= FILE_FLAG_RANDOM_ACCESS;
+ else
+ flags |= FILE_FLAG_SEQUENTIAL_SCAN;
+ break;
+ case F_ADV_RANDOM:
flags |= FILE_FLAG_RANDOM_ACCESS;
+ break;
+ case F_ADV_SEQUENTIAL:
+ flags |= FILE_FLAG_SEQUENTIAL_SCAN;
+ break;
+ case F_ADV_NONE:
+ break;
+ default:
+ log_err("fio: unknown fadvise type %d\n", td->o.fadvise_hint);
+ }
if (!td_write(td) || read_only)
access = GENERIC_READ;
else
openmode = OPEN_EXISTING;
+ /* If we're going to use direct I/O, Windows will try and invalidate
+ * its cache at that point so there's no need to do it here */
+ if (td->o.invalidate_cache && !td->o.odirect)
+ windowsaio_invalidate_cache(f);
+
f->hFile = CreateFile(f->file_name, access, sharemode,
NULL, openmode, flags, NULL);
/* Only set up the completion port and thread if we're not just
* querying the device size */
- if (!rc && td->io_ops->data != NULL) {
+ if (!rc && td->io_ops_data != NULL) {
struct windowsaio_data *wd;
- wd = td->io_ops->data;
+ wd = td->io_ops_data;
if (CreateIoCompletionPort(f->hFile, wd->iocp, 0, 0) == NULL) {
log_err("windowsaio: failed to create io completion port\n");
static struct io_u* fio_windowsaio_event(struct thread_data *td, int event)
{
- struct windowsaio_data *wd = td->io_ops->data;
+ struct windowsaio_data *wd = td->io_ops_data;
return wd->aio_events[event];
}
unsigned int max,
const struct timespec *t)
{
- struct windowsaio_data *wd = td->io_ops->data;
+ struct windowsaio_data *wd = td->io_ops_data;
unsigned int dequeued = 0;
struct io_u *io_u;
int i;
break;
}
- if (dequeued >= min || (t != NULL && timeout_expired(start_count, end_count)))
+ if (dequeued >= min ||
+ (t != NULL && timeout_expired(start_count, end_count)))
break;
} while (1);
switch (io_u->ddir) {
case DDIR_WRITE:
- success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, NULL, lpOvl);
+ success = WriteFile(io_u->file->hFile, io_u->xfer_buf,
+ io_u->xfer_buflen, NULL, lpOvl);
break;
case DDIR_READ:
- success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, NULL, lpOvl);
+ success = ReadFile(io_u->file->hFile, io_u->xfer_buf,
+ io_u->xfer_buflen, NULL, lpOvl);
break;
case DDIR_SYNC:
case DDIR_DATASYNC:
}
return FIO_Q_COMPLETED;
- break;
case DDIR_TRIM:
log_err("windowsaio: manual TRIM isn't supported on Windows\n");
io_u->error = 1;
io_u->resid = io_u->xfer_buflen;
return FIO_Q_COMPLETED;
- break;
default:
assert(0);
break;
wd = ctx->wd;
do {
- if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250) && ovl == NULL)
+ BOOL ret;
+
+ ret = GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey,
+ &ovl, 250);
+ if (!ret && ovl == NULL)
continue;
fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o);
projects / fio.git / blobdiff