189 lines
5.7 KiB
Groff
189 lines
5.7 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "lh_stats 3"
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.TH lh_stats 3 "2005-02-24" "0.9.7d" "OpenSSL"
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.SH "NAME"
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lh_stats, lh_node_stats, lh_node_usage_stats, lh_stats_bio,
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lh_node_stats_bio, lh_node_usage_stats_bio \- LHASH statistics
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/lhash.h>
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.Ve
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.Vb 3
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\& void lh_stats(LHASH *table, FILE *out);
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\& void lh_node_stats(LHASH *table, FILE *out);
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\& void lh_node_usage_stats(LHASH *table, FILE *out);
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.Ve
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.Vb 3
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\& void lh_stats_bio(LHASH *table, BIO *out);
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\& void lh_node_stats_bio(LHASH *table, BIO *out);
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\& void lh_node_usage_stats_bio(LHASH *table, BIO *out);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The \fB\s-1LHASH\s0\fR structure records statistics about most aspects of
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accessing the hash table. This is mostly a legacy of Eric Young
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writing this library for the reasons of implementing what looked like
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a nice algorithm rather than for a particular software product.
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.PP
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\&\fIlh_stats()\fR prints out statistics on the size of the hash table, how
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many entries are in it, and the number and result of calls to the
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routines in this library.
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.PP
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\&\fIlh_node_stats()\fR prints the number of entries for each 'bucket' in the
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hash table.
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.PP
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\&\fIlh_node_usage_stats()\fR prints out a short summary of the state of the
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hash table. It prints the 'load' and the 'actual load'. The load is
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the average number of data items per 'bucket' in the hash table. The
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\&'actual load' is the average number of items per 'bucket', but only
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for buckets which contain entries. So the 'actual load' is the
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average number of searches that will need to find an item in the hash
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table, while the 'load' is the average number that will be done to
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record a miss.
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.PP
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\&\fIlh_stats_bio()\fR, \fIlh_node_stats_bio()\fR and \fIlh_node_usage_stats_bio()\fR
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are the same as the above, except that the output goes to a \fB\s-1BIO\s0\fR.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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These functions do not return values.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIbio\fR\|(3), \fIlhash\fR\|(3)
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.SH "HISTORY"
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.IX Header "HISTORY"
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These functions are available in all versions of SSLeay and OpenSSL.
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.PP
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This manpage is derived from the SSLeay documentation.
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