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Diffstat (limited to 'openssl/doc/crypto/lh_stats.pod')
-rw-r--r-- | openssl/doc/crypto/lh_stats.pod | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/openssl/doc/crypto/lh_stats.pod b/openssl/doc/crypto/lh_stats.pod new file mode 100644 index 000000000..3eeaa72e5 --- /dev/null +++ b/openssl/doc/crypto/lh_stats.pod @@ -0,0 +1,60 @@ +=pod + +=head1 NAME + +lh_stats, lh_node_stats, lh_node_usage_stats, lh_stats_bio, +lh_node_stats_bio, lh_node_usage_stats_bio - LHASH statistics + +=head1 SYNOPSIS + + #include <openssl/lhash.h> + + void lh_stats(LHASH *table, FILE *out); + void lh_node_stats(LHASH *table, FILE *out); + void lh_node_usage_stats(LHASH *table, FILE *out); + + void lh_stats_bio(LHASH *table, BIO *out); + void lh_node_stats_bio(LHASH *table, BIO *out); + void lh_node_usage_stats_bio(LHASH *table, BIO *out); + +=head1 DESCRIPTION + +The B<LHASH> structure records statistics about most aspects of +accessing the hash table. This is mostly a legacy of Eric Young +writing this library for the reasons of implementing what looked like +a nice algorithm rather than for a particular software product. + +lh_stats() prints out statistics on the size of the hash table, how +many entries are in it, and the number and result of calls to the +routines in this library. + +lh_node_stats() prints the number of entries for each 'bucket' in the +hash table. + +lh_node_usage_stats() prints out a short summary of the state of the +hash table. It prints the 'load' and the 'actual load'. The load is +the average number of data items per 'bucket' in the hash table. The +'actual load' is the average number of items per 'bucket', but only +for buckets which contain entries. So the 'actual load' is the +average number of searches that will need to find an item in the hash +table, while the 'load' is the average number that will be done to +record a miss. + +lh_stats_bio(), lh_node_stats_bio() and lh_node_usage_stats_bio() +are the same as the above, except that the output goes to a B<BIO>. + +=head1 RETURN VALUES + +These functions do not return values. + +=head1 SEE ALSO + +L<bio(3)|bio(3)>, L<lhash(3)|lhash(3)> + +=head1 HISTORY + +These functions are available in all versions of SSLeay and OpenSSL. + +This manpage is derived from the SSLeay documentation. + +=cut |