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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23: /*
24: * Copyright (c) 1992, 1993
25: * The Regents of the University of California. All rights reserved.
26: *
27: * This code is derived from software contributed to Berkeley by
28: * Rick Macklem at The University of Guelph.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)nfsrtt.h 8.2 (Berkeley) 3/30/95
59: * FreeBSD-Id: nfsrtt.h,v 1.8 1997/06/03 17:22:47 dfr Exp $
60: */
61:
62:
63: #ifndef _NFS_NFSRTT_H_
64: #define _NFS_NFSRTT_H_
65:
66: /*
67: * Definitions for performance monitor.
68: * The client and server logging are turned on by setting the global
69: * constant "nfsrtton" to 1.
70: */
71: #define NFSRTTLOGSIZ 128
72:
73: /*
74: * Circular log of client side rpc activity. Each log entry is for one
75: * rpc filled in upon completion. (ie. in order of completion)
76: * The "pos" is the table index for the "next" entry, therefore the
77: * list goes from nfsrtt.rttl[pos] --> nfsrtt.rttl[pos - 1] in
78: * chronological order of completion.
79: */
80: struct nfsrtt {
81: int pos; /* Position in array for next entry */
82: struct rttl {
83: u_int32_t proc; /* NFS procedure number */
84: int rtt; /* Measured round trip time */
85: int rto; /* Round Trip Timeout */
86: int sent; /* # rpcs in progress */
87: int cwnd; /* Send window */
88: int srtt; /* Ave Round Trip Time */
89: int sdrtt; /* Ave mean deviation of RTT */
90: fsid_t fsid; /* Fsid for mount point */
91: struct timeval tstamp; /* Timestamp of log entry */
92: } rttl[NFSRTTLOGSIZ];
93: };
94:
95: /*
96: * And definitions for server side performance monitor.
97: * The log organization is the same as above except it is filled in at the
98: * time the server sends the rpc reply.
99: */
100:
101: /*
102: * Bits for the flags field.
103: */
104: #define DRT_NQNFS 0x01 /* Rpc used Nqnfs protocol */
105: #define DRT_TCP 0x02 /* Client used TCP transport */
106: #define DRT_CACHEREPLY 0x04 /* Reply was from recent request cache */
107: #define DRT_CACHEDROP 0x08 /* Rpc request dropped, due to recent reply */
108: #define DRT_NFSV3 0x10 /* Rpc used NFS Version 3 */
109:
110: /*
111: * Server log structure
112: * NB: ipadr == INADDR_ANY indicates a client using a non IP protocol.
113: * (ISO perhaps?)
114: */
115: struct nfsdrt {
116: int pos; /* Position of next log entry */
117: struct drt {
118: int flag; /* Bits as defined above */
119: u_int32_t proc; /* NFS procedure number */
120: u_long ipadr; /* IP address of client */
121: int resptime; /* Response time (usec) */
122: struct timeval tstamp; /* Timestamp of log entry */
123: } drt[NFSRTTLOGSIZ];
124: };
125:
126: #endif
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