1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "ctx.h" 35 #include "stats.h" 36 37 int 38 vbdev_ocf_stats_get(ocf_cache_t cache, char *core_name, struct vbdev_ocf_stats *stats) 39 { 40 int status; 41 ocf_core_t core; 42 43 status = ocf_core_get_by_name(cache, core_name, strlen(core_name), &core); 44 if (status) { 45 return status; 46 } 47 48 return ocf_stats_collect_core(core, &stats->usage, &stats->reqs, &stats->blocks, &stats->errors); 49 } 50 51 #define WJSON_STAT(w, stats, group, field, units) \ 52 spdk_json_write_named_object_begin(w, #field); \ 53 spdk_json_write_named_uint64(w, "count", stats->group.field.value); \ 54 spdk_json_write_named_string_fmt(w, "percentage", "%lu.%lu", \ 55 stats->group.field.fraction / 100, stats->group.field.fraction % 100); \ 56 spdk_json_write_named_string(w, "units", units); \ 57 spdk_json_write_object_end(w); 58 59 void 60 vbdev_ocf_stats_write_json(struct spdk_json_write_ctx *w, struct vbdev_ocf_stats *stats) 61 { 62 spdk_json_write_object_begin(w); 63 64 spdk_json_write_named_object_begin(w, "usage"); 65 WJSON_STAT(w, stats, usage, occupancy, "4KiB blocks"); 66 WJSON_STAT(w, stats, usage, free, "4KiB blocks"); 67 WJSON_STAT(w, stats, usage, clean, "4KiB blocks"); 68 WJSON_STAT(w, stats, usage, dirty, "4KiB blocks"); 69 spdk_json_write_object_end(w); 70 71 spdk_json_write_named_object_begin(w, "requests"); 72 WJSON_STAT(w, stats, reqs, rd_hits, "Requests"); 73 WJSON_STAT(w, stats, reqs, rd_partial_misses, "Requests"); 74 WJSON_STAT(w, stats, reqs, rd_full_misses, "Requests"); 75 WJSON_STAT(w, stats, reqs, rd_total, "Requests"); 76 WJSON_STAT(w, stats, reqs, wr_hits, "Requests"); 77 WJSON_STAT(w, stats, reqs, wr_partial_misses, "Requests"); 78 WJSON_STAT(w, stats, reqs, wr_full_misses, "Requests"); 79 WJSON_STAT(w, stats, reqs, wr_total, "Requests"); 80 WJSON_STAT(w, stats, reqs, rd_pt, "Requests"); 81 WJSON_STAT(w, stats, reqs, wr_pt, "Requests"); 82 WJSON_STAT(w, stats, reqs, serviced, "Requests"); 83 WJSON_STAT(w, stats, reqs, total, "Requests"); 84 spdk_json_write_object_end(w); 85 86 spdk_json_write_named_object_begin(w, "blocks"); 87 WJSON_STAT(w, stats, blocks, core_volume_rd, "4KiB blocks"); 88 WJSON_STAT(w, stats, blocks, core_volume_wr, "4KiB blocks"); 89 WJSON_STAT(w, stats, blocks, core_volume_total, "4KiB blocks"); 90 WJSON_STAT(w, stats, blocks, cache_volume_rd, "4KiB blocks"); 91 WJSON_STAT(w, stats, blocks, cache_volume_wr, "4KiB blocks"); 92 WJSON_STAT(w, stats, blocks, cache_volume_total, "4KiB blocks"); 93 WJSON_STAT(w, stats, blocks, volume_rd, "4KiB blocks"); 94 WJSON_STAT(w, stats, blocks, volume_wr, "4KiB blocks"); 95 WJSON_STAT(w, stats, blocks, volume_total, "4KiB blocks"); 96 spdk_json_write_object_end(w); 97 98 spdk_json_write_named_object_begin(w, "errors"); 99 WJSON_STAT(w, stats, errors, core_volume_rd, "Requests"); 100 WJSON_STAT(w, stats, errors, core_volume_wr, "Requests"); 101 WJSON_STAT(w, stats, errors, core_volume_total, "Requests"); 102 WJSON_STAT(w, stats, errors, cache_volume_rd, "Requests"); 103 WJSON_STAT(w, stats, errors, cache_volume_wr, "Requests"); 104 WJSON_STAT(w, stats, errors, cache_volume_total, "Requests"); 105 WJSON_STAT(w, stats, errors, total, "Requests"); 106 spdk_json_write_object_end(w); 107 108 spdk_json_write_object_end(w); 109 } 110