1=pod 2 3=head1 NAME 4 5OPENSSL_LH_stats, OPENSSL_LH_node_stats, OPENSSL_LH_node_usage_stats, 6OPENSSL_LH_stats_bio, 7OPENSSL_LH_node_stats_bio, OPENSSL_LH_node_usage_stats_bio - LHASH statistics 8 9=head1 SYNOPSIS 10 11 #include <openssl/lhash.h> 12 13 void OPENSSL_LH_stats(LHASH *table, FILE *out); 14 void OPENSSL_LH_node_stats(LHASH *table, FILE *out); 15 void OPENSSL_LH_node_usage_stats(LHASH *table, FILE *out); 16 17 void OPENSSL_LH_stats_bio(LHASH *table, BIO *out); 18 void OPENSSL_LH_node_stats_bio(LHASH *table, BIO *out); 19 void OPENSSL_LH_node_usage_stats_bio(LHASH *table, BIO *out); 20 21=head1 DESCRIPTION 22 23The B<LHASH> structure records statistics about most aspects of 24accessing the hash table. 25 26OPENSSL_LH_stats() prints out statistics on the size of the hash table, how 27many entries are in it, and the number and result of calls to the 28routines in this library. 29 30OPENSSL_LH_node_stats() prints the number of entries for each 'bucket' in the 31hash table. 32 33OPENSSL_LH_node_usage_stats() prints out a short summary of the state of the 34hash table. It prints the 'load' and the 'actual load'. The load is 35the average number of data items per 'bucket' in the hash table. The 36'actual load' is the average number of items per 'bucket', but only 37for buckets which contain entries. So the 'actual load' is the 38average number of searches that will need to find an item in the hash 39table, while the 'load' is the average number that will be done to 40record a miss. 41 42OPENSSL_LH_stats_bio(), OPENSSL_LH_node_stats_bio() and OPENSSL_LH_node_usage_stats_bio() 43are the same as the above, except that the output goes to a B<BIO>. 44 45=head1 RETURN VALUES 46 47These functions do not return values. 48 49=head1 NOTE 50 51These calls should be made under a read lock. Refer to 52L<OPENSSL_LH_COMPFUNC(3)/NOTE> for more details about the locks required 53when using the LHASH data structure. 54 55=head1 SEE ALSO 56 57L<bio(7)>, L<OPENSSL_LH_COMPFUNC(3)> 58 59=head1 COPYRIGHT 60 61Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved. 62 63Licensed under the OpenSSL license (the "License"). You may not use 64this file except in compliance with the License. You can obtain a copy 65in the file LICENSE in the source distribution or at 66L<https://www.openssl.org/source/license.html>. 67 68=cut 69