Annotation of sys/nfs/nfsrtt.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: nfsrtt.h,v 1.6 2003/06/02 23:28:20 millert Exp $ */
2: /* $NetBSD: nfsrtt.h,v 1.4 1996/02/18 11:54:07 fvdl Exp $ */
3:
4: /*
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Rick Macklem at The University of Guelph.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: *
35: * @(#)nfsrtt.h 8.2 (Berkeley) 3/30/95
36: */
37:
38:
39: #ifndef _NFS_NFSRTT_H_
40: #define _NFS_NFSRTT_H_
41:
42: /*
43: * Definitions for performance monitor.
44: * The client and server logging are turned on by setting the global
45: * constant "nfsrtton" to 1.
46: */
47: #define NFSRTTLOGSIZ 128
48:
49: /*
50: * Circular log of client side rpc activity. Each log entry is for one
51: * rpc filled in upon completion. (ie. in order of completion)
52: * The "pos" is the table index for the "next" entry, therefore the
53: * list goes from nfsrtt.rttl[pos] --> nfsrtt.rttl[pos - 1] in
54: * chronological order of completion.
55: */
56: struct nfsrtt {
57: int pos; /* Position in array for next entry */
58: struct rttl {
59: int proc; /* NFS procedure number */
60: int rtt; /* Measured round trip time */
61: int rto; /* Round Trip Timeout */
62: int sent; /* # rpcs in progress */
63: int cwnd; /* Send window */
64: int srtt; /* Ave Round Trip Time */
65: int sdrtt; /* Ave mean deviation of RTT */
66: fsid_t fsid; /* Fsid for mount point */
67: struct timeval tstamp; /* Timestamp of log entry */
68: } rttl[NFSRTTLOGSIZ];
69: };
70:
71: /*
72: * And definitions for server side performance monitor.
73: * The log organization is the same as above except it is filled in at the
74: * time the server sends the rpc reply.
75: */
76:
77: /*
78: * Bits for the flags field.
79: */
80: #define DRT_TCP 0x02 /* Client used TCP transport */
81: #define DRT_CACHEREPLY 0x04 /* Reply was from recent request cache */
82: #define DRT_CACHEDROP 0x08 /* Rpc request dropped, due to recent reply */
83: #define DRT_NFSV3 0x10 /* Rpc used NFS Version 3 */
84:
85: /*
86: * Server log structure
87: * NB: ipadr == INADDR_ANY indicates a client using a non IP protocol.
88: * (ISO perhaps?)
89: */
90: struct nfsdrt {
91: int pos; /* Position of next log entry */
92: struct drt {
93: int flag; /* Bits as defined above */
94: int proc; /* NFS procedure number */
95: u_int32_t ipadr; /* IP address of client */
96: int resptime; /* Response time (usec) */
97: struct timeval tstamp; /* Timestamp of log entry */
98: } drt[NFSRTTLOGSIZ];
99: };
100:
101: #endif
CVSweb