fi
echo "pwritev/preadv $pwritev"
+##########################################
+# Check whether we have pwritev2/preadv2
+pwritev2="no"
+cat > $TMPC << EOF
+#include <stdio.h>
+#include <sys/uio.h>
+int main(int argc, char **argv)
+{
+ return pwritev2(0, NULL, 1, 0, 0) + preadv2(0, NULL, 1, 0, 0);
+}
+EOF
+if compile_prog "" "" "pwritev2"; then
+ pwritev2="yes"
+fi
+echo "pwritev2/preadv2 $pwritev2"
+
##########################################
# Check whether we have the required functions for ipv6
ipv6="no"
if test "$pwritev" = "yes" ; then
output_sym "CONFIG_PWRITEV"
fi
+if test "$pwritev2" = "yes" ; then
+ output_sym "CONFIG_PWRITEV2"
+fi
if test "$ipv6" = "yes" ; then
output_sym "CONFIG_IPV6"
fi
#include <assert.h>
#include "../fio.h"
+#include "../optgroup.h"
/*
* Sync engine uses engine_data to store last offset
enum fio_ddir last_ddir;
};
+#ifdef CONFIG_PWRITEV2
+struct psyncv2_options {
+ void *pad;
+ unsigned int hipri;
+};
+
+static struct fio_option options[] = {
+ {
+ .name = "hipri",
+ .lname = "RWF_HIPRI",
+ .type = FIO_OPT_STR_SET,
+ .off1 = offsetof(struct psyncv2_options, hipri),
+ .help = "Set RWF_HIPRI for pwritev2/preadv2",
+ .category = FIO_OPT_C_ENGINE,
+ .group = FIO_OPT_G_INVALID,
+ },
+ {
+ .name = NULL,
+ },
+};
+#endif
+
static int fio_syncio_prep(struct thread_data *td, struct io_u *io_u)
{
struct fio_file *f = io_u->file;
}
#endif
+#ifdef CONFIG_PWRITEV2
+static int fio_pvsyncio2_queue(struct thread_data *td, struct io_u *io_u)
+{
+ struct syncio_data *sd = td->io_ops->data;
+ struct psyncv2_options *o = td->eo;
+ struct iovec *iov = &sd->iovecs[0];
+ struct fio_file *f = io_u->file;
+ int ret, flags = 0;
+
+ fio_ro_check(td, io_u);
+
+ if (o->hipri)
+ flags |= RWF_HIPRI;
+
+ iov->iov_base = io_u->xfer_buf;
+ iov->iov_len = io_u->xfer_buflen;
+
+ if (io_u->ddir == DDIR_READ)
+ ret = preadv2(f->fd, iov, 1, io_u->offset, flags);
+ else if (io_u->ddir == DDIR_WRITE)
+ ret = pwritev2(f->fd, iov, 1, io_u->offset, flags);
+ else if (io_u->ddir == DDIR_TRIM) {
+ do_io_u_trim(td, io_u);
+ return FIO_Q_COMPLETED;
+ } else
+ ret = do_io_u_sync(td, io_u);
+
+ return fio_io_end(td, io_u, ret);
+}
+#endif
+
+
static int fio_psyncio_queue(struct thread_data *td, struct io_u *io_u)
{
struct fio_file *f = io_u->file;
};
#endif
+#ifdef CONFIG_PWRITEV2
+static struct ioengine_ops ioengine_pvrw2 = {
+ .name = "pvsync2",
+ .version = FIO_IOOPS_VERSION,
+ .init = fio_vsyncio_init,
+ .cleanup = fio_vsyncio_cleanup,
+ .queue = fio_pvsyncio2_queue,
+ .open_file = generic_open_file,
+ .close_file = generic_close_file,
+ .get_file_size = generic_get_file_size,
+ .flags = FIO_SYNCIO,
+ .options = options,
+ .option_struct_size = sizeof(struct psyncv2_options),
+};
+#endif
+
static void fio_init fio_syncio_register(void)
{
register_ioengine(&ioengine_rw);
.B pvsync
Basic \fBpreadv\fR\|(2) or \fBpwritev\fR\|(2) I/O.
.TP
+.B pvsync2
+Basic \fBpreadv2\fR\|(2) or \fBpwritev2\fR\|(2) I/O.
+.TP
.B libaio
Linux native asynchronous I/O. This ioengine defines engine specific options.
.TP
enabled when polling for a minimum of 0 events (eg when
iodepth_batch_complete=0).
.TP
+.BI (psyncv2)hipri
+Set RWF_HIPRI on IO, indicating to the kernel that it's of
+higher priority than normal.
+.TP
.BI (net,netsplice)hostname \fR=\fPstr
The host name or IP address to use for TCP or UDP based IO.
If the job is a TCP listener or UDP reader, the hostname is not