Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging
[qemu/ar7.git] / block / accounting.c
blob01d594ffdc72b58e79d861a81b8c9d334b228364
1 /*
2 * QEMU System Emulator block accounting
4 * Copyright (c) 2011 Christoph Hellwig
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
25 #include "block/accounting.h"
26 #include "block/block_int.h"
27 #include "qemu/timer.h"
29 void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie,
30 int64_t bytes, enum BlockAcctType type)
32 assert(type < BLOCK_MAX_IOTYPE);
34 cookie->bytes = bytes;
35 cookie->start_time_ns = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
36 cookie->type = type;
39 void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie)
41 assert(cookie->type < BLOCK_MAX_IOTYPE);
43 stats->nr_bytes[cookie->type] += cookie->bytes;
44 stats->nr_ops[cookie->type]++;
45 stats->total_time_ns[cookie->type] +=
46 qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - cookie->start_time_ns;
50 void block_acct_highest_sector(BlockAcctStats *stats, int64_t sector_num,
51 unsigned int nb_sectors)
53 if (stats->wr_highest_sector < sector_num + nb_sectors - 1) {
54 stats->wr_highest_sector = sector_num + nb_sectors - 1;
58 void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
59 int num_requests)
61 assert(type < BLOCK_MAX_IOTYPE);
62 stats->merged[type] += num_requests;