Print this page
3740 Poor ZFS send / receive performance due to snapshot hold / release processing
Submitted by: Steven Hartland <steven.hartland@multiplay.co.uk>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>


   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2012 by Delphix. All rights reserved.
  26  * Copyright (c) 2012, Joyent, Inc. All rights reserved.

  27  */
  28 
  29 #ifndef _LIBZFS_H
  30 #define _LIBZFS_H
  31 
  32 #include <assert.h>
  33 #include <libnvpair.h>
  34 #include <sys/mnttab.h>
  35 #include <sys/param.h>
  36 #include <sys/types.h>
  37 #include <sys/varargs.h>
  38 #include <sys/fs/zfs.h>
  39 #include <sys/avl.h>
  40 #include <ucred.h>
  41 
  42 #ifdef  __cplusplus
  43 extern "C" {
  44 #endif
  45 
  46 /*


 577         /* send properties (ie, -p) */
 578         boolean_t props;
 579 
 580         /* do not send (no-op, ie. -n) */
 581         boolean_t dryrun;
 582 
 583         /* parsable verbose output (ie. -P) */
 584         boolean_t parsable;
 585 
 586         /* show progress (ie. -v) */
 587         boolean_t progress;
 588 } sendflags_t;
 589 
 590 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 591 
 592 extern int zfs_send(zfs_handle_t *, const char *, const char *,
 593     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
 594 
 595 extern int zfs_promote(zfs_handle_t *);
 596 extern int zfs_hold(zfs_handle_t *, const char *, const char *,
 597     boolean_t, boolean_t, int);

 598 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 599 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 600 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 601 
 602 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 603     uid_t rid, uint64_t space);
 604 
 605 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 606     zfs_userspace_cb_t, void *);
 607 
 608 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
 609 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
 610 
 611 typedef struct recvflags {
 612         /* print informational messages (ie, -v was specified) */
 613         boolean_t verbose;
 614 
 615         /* the destination is a prefix, not the exact fs (ie, -d) */
 616         boolean_t isprefix;
 617 




   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2012 by Delphix. All rights reserved.
  26  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
  27  * Copyright (c) 2013 Steven Hartland. All rights reserved.
  28  */
  29 
  30 #ifndef _LIBZFS_H
  31 #define _LIBZFS_H
  32 
  33 #include <assert.h>
  34 #include <libnvpair.h>
  35 #include <sys/mnttab.h>
  36 #include <sys/param.h>
  37 #include <sys/types.h>
  38 #include <sys/varargs.h>
  39 #include <sys/fs/zfs.h>
  40 #include <sys/avl.h>
  41 #include <ucred.h>
  42 
  43 #ifdef  __cplusplus
  44 extern "C" {
  45 #endif
  46 
  47 /*


 578         /* send properties (ie, -p) */
 579         boolean_t props;
 580 
 581         /* do not send (no-op, ie. -n) */
 582         boolean_t dryrun;
 583 
 584         /* parsable verbose output (ie. -P) */
 585         boolean_t parsable;
 586 
 587         /* show progress (ie. -v) */
 588         boolean_t progress;
 589 } sendflags_t;
 590 
 591 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 592 
 593 extern int zfs_send(zfs_handle_t *, const char *, const char *,
 594     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
 595 
 596 extern int zfs_promote(zfs_handle_t *);
 597 extern int zfs_hold(zfs_handle_t *, const char *, const char *,
 598     boolean_t, int);
 599 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *);
 600 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 601 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 602 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 603 
 604 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 605     uid_t rid, uint64_t space);
 606 
 607 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 608     zfs_userspace_cb_t, void *);
 609 
 610 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
 611 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
 612 
 613 typedef struct recvflags {
 614         /* print informational messages (ie, -v was specified) */
 615         boolean_t verbose;
 616 
 617         /* the destination is a prefix, not the exact fs (ie, -d) */
 618         boolean_t isprefix;
 619