| | 1 | /* |
| | 2 | * Copyright (c) 2015 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | #ifndef _NET_NET_PERF_H_ |
| | 29 | #define _NET_NET_PERF_H_ |
| | 30 | |
| | 31 | #include <stdint.h> |
| | 32 | |
| | 33 | #ifdef KERNEL_PRIVATE |
| | 34 | #include <sys/time.h> |
| | 35 | #include <mach/boolean.h> |
| | 36 | #endif /* KERNEL_PRIVATE */ |
| | 37 | |
| | 38 | /* five histogram bins are separated by four dividing "bars" */ |
| | 39 | #define NET_PERF_BARS 4 |
| | 40 | |
| | 41 | typedef struct net_perf { |
| | 42 | uint64_t np_total_pkts; /* total packets input or output during measurement */ |
| | 43 | uint64_t np_total_usecs; /* microseconds elapsed during measurement */ |
| | 44 | uint64_t np_hist1; /* histogram bin 1 */ |
| | 45 | uint64_t np_hist2; /* histogram bin 2 */ |
| | 46 | uint64_t np_hist3; /* histogram bin 3 */ |
| | 47 | uint64_t np_hist4; /* histogram bin 4 */ |
| | 48 | uint64_t np_hist5; /* histogram bin 5 */ |
| | 49 | uint8_t np_hist_bars[NET_PERF_BARS]; |
| | 50 | } net_perf_t; |
| | 51 | |
| | 52 | #ifdef KERNEL_PRIVATE |
| | 53 | void net_perf_initialize(net_perf_t *npp, uint64_t bins); |
| | 54 | void net_perf_start_time(net_perf_t *npp, struct timeval *tv); |
| | 55 | void net_perf_measure_time(net_perf_t *npp, struct timeval *start, uint64_t num_pkts); |
| | 56 | void net_perf_histogram(net_perf_t *npp, uint64_t num_pkts); |
| | 57 | boolean_t net_perf_validate_bins(uint64_t bins); |
| | 58 | |
| | 59 | #endif /* KERNEL_PRIVATE */ |
| | 60 | |
| | 61 | #endif /* _NET_NET_PERF_H_ */ |
| | 62 | |
projects / apple / xnu.git / blame_incremental