dataset_kstats.h

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    1 /*
    2  * CDDL HEADER START
    3  *
    4  * The contents of this file are subject to the terms of the
    5  * Common Development and Distribution License (the "License").
    6  * You may not use this file except in compliance with the License.
    7  *
    8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
    9  * or https://opensource.org/licenses/CDDL-1.0.
   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) 2018 by Delphix. All rights reserved.
   24  * Copyright (c) 2018 Datto Inc.
   25  */
   26 
   27 #ifndef _SYS_DATASET_KSTATS_H
   28 #define _SYS_DATASET_KSTATS_H
   29 
   30 #include <sys/wmsum.h>
   31 #include <sys/dmu.h>
   32 #include <sys/kstat.h>
   33 #include <sys/zil.h>
   34 
   35 typedef struct dataset_sum_stats_t {
   36         wmsum_t dss_writes;
   37         wmsum_t dss_nwritten;
   38         wmsum_t dss_reads;
   39         wmsum_t dss_nread;
   40         wmsum_t dss_nunlinks;
   41         wmsum_t dss_nunlinked;
   42 } dataset_sum_stats_t;
   43 
   44 typedef struct dataset_kstat_values {
   45         kstat_named_t dkv_ds_name;
   46         kstat_named_t dkv_writes;
   47         kstat_named_t dkv_nwritten;
   48         kstat_named_t dkv_reads;
   49         kstat_named_t dkv_nread;
   50         /*
   51          * nunlinks is initialized to the unlinked set size on mount and
   52          * is incremented whenever a new entry is added to the unlinked set
   53          */
   54         kstat_named_t dkv_nunlinks;
   55         /*
   56          * nunlinked is initialized to zero on mount and is incremented when an
   57          * entry is removed from the unlinked set
   58          */
   59         kstat_named_t dkv_nunlinked;
   60         /*
   61          * Per dataset zil kstats
   62          */
   63         zil_kstat_values_t dkv_zil_stats;
   64 } dataset_kstat_values_t;
   65 
   66 typedef struct dataset_kstats {
   67         dataset_sum_stats_t dk_sums;
   68         zil_sums_t dk_zil_sums;
   69         kstat_t *dk_kstats;
   70 } dataset_kstats_t;
   71 
   72 int dataset_kstats_create(dataset_kstats_t *, objset_t *);
   73 void dataset_kstats_destroy(dataset_kstats_t *);
   74 
   75 void dataset_kstats_update_write_kstats(dataset_kstats_t *, int64_t);
   76 void dataset_kstats_update_read_kstats(dataset_kstats_t *, int64_t);
   77 
   78 void dataset_kstats_update_nunlinks_kstat(dataset_kstats_t *, int64_t);
   79 void dataset_kstats_update_nunlinked_kstat(dataset_kstats_t *, int64_t);
   80 
   81 #endif /* _SYS_DATASET_KSTATS_H */

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/include/sys/dataset_kstats.h

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/sys/dataset_kstats.h