Date: Thu, 15 Oct 1998 16:14:43 -0500 From: Dan Nelson <dnelson@emsphone.com> To: elias@pro.via-rs.com.br, freebsd-questions@FreeBSD.ORG Subject: Re: pwd_mkdb performance Message-ID: <19981015161443.A8607@emsphone.com> In-Reply-To: <36269592.153E@pro.via-rs.com.br>; from "Elias Alexandre Argenton" on Thu Oct 15 17:38:42 GMT 1998 References: <36269592.153E@pro.via-rs.com.br>
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In the last episode (Oct 15), Elias Alexandre Argenton said:
> We have:
> - one Pentium 200 PRO with 128 MB of memory running FREEBSD 2.2.5
> - a master/passwd with 15.000 entries
>
> When we run pwd_mkdb it takes about 10 minutes with full cpu
> utilization. Is this correct? It seams very very wrong.
pwd_mkdb uses a small cache size by default (only 2MB) when building
the .db files. in 3.0, there is a -s # option that resizes the cache
to # meg. Here's the patch, which should be pretty easy to apply to
the pwd_mkdb source:
-Dan Nelson
dnelson@emsphone.com
Index: pwd_mkdb.c
===================================================================
RCS file: /home/ncvs/src/usr.sbin/pwd_mkdb/pwd_mkdb.c,v
retrieving revision 1.24
retrieving revision 1.25
diff -u -r1.24 -r1.25
--- pwd_mkdb.c 1998/02/19 08:12:11 1.24
+++ pwd_mkdb.c 1998/04/19 07:15:34 1.25
@@ -114,7 +114,7 @@
strcpy(prefix, _PATH_PWD);
makeold = 0;
username = NULL;
- while ((ch = getopt(argc, argv, "Cd:pu:v")) != -1)
+ while ((ch = getopt(argc, argv, "Cd:ps:u:v")) != -1)
switch(ch) {
case 'C': /* verify only */
Cflag = 1;
@@ -124,6 +124,9 @@
break;
case 'p': /* create V7 "file.orig" */
makeold = 1;
+ break;
+ case 's': /* change default cachesize */
+ openinfo.cachesize = atoi(optarg) * 1024 * 1024;
break;
case 'u': /* only update this record */
username = optarg;
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