Lines Matching +full:high +full:- +full:performance

1 # Copyright (c) 2001-2003, 2014 Proofpoint, Inc. and its suppliers.
8 #	$Id: TUNING,v 1.22 2013-11-22 20:51:54 ca Exp $
17 required performance, there are several configuration options that
18 can be changed to accomplish higher performance.  However, before
20 performance is not as good as desired.  This may also involve hardware
24 the scope of this guide.  In almost all other cases performance will
34 * Mailing Lists and Large Aliases (1-n Mailing)
35 * 1-1 Mass Mailing
36 * High Volume Mail
40 to configure sendmail to achieve good performance in all cases, but
42 is non-trivial to combine low latency (fast delivery of incoming
43 mail) with high overall throughput.
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55 better disk I/O performance the queue directories can be spread
58 disk is exceeded, which is true for almost every high-volume
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92 Queueing up e-mail before delivery is done by a queue runner allows
96 on a queue group basis.  Persistent queue runners (-qp) can be used
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110 group, maximum number of recipients within an e-mail (envelope),
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123 host name with qualified host names, and CNAMEs with the non-aliased
132 to send e-mail then either the -G option should be used or
146 Khost host -t
150 * Mailing Lists and Large Aliases (1-n Mailing)
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153 Before 8.12 sendmail would deliver an e-mail sequentially to all its
156 located at hosts that are slow to accept e-mail.  Some mailing list
157 software therefore "split" up e-mails into smaller pieces with
189 -q5m assures that the first delivery attempt for each e-mail is
201 * 1-1 Mass Mailing
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204 In this case some program generates e-mails which are sent to
205 individual recipients (or at most very few per e-mail).  A simple
206 way to achieve high throughput is to set the delivery mode to
212 enhance performance, especially compared to normal disk subsystems, e.g.,
213 non solid-state disks.
216 * High Volume Mail
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219 For high volume mail it is necessary to be able to control the load
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235 Other options that are interesting to tweak performance are