mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
4746f25ac6
[skip ci] Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7829)
69 lines
2.2 KiB
Plaintext
69 lines
2.2 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
OPENSSL_LH_stats, OPENSSL_LH_node_stats, OPENSSL_LH_node_usage_stats,
|
|
OPENSSL_LH_stats_bio,
|
|
OPENSSL_LH_node_stats_bio, OPENSSL_LH_node_usage_stats_bio - LHASH statistics
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/lhash.h>
|
|
|
|
void OPENSSL_LH_stats(LHASH *table, FILE *out);
|
|
void OPENSSL_LH_node_stats(LHASH *table, FILE *out);
|
|
void OPENSSL_LH_node_usage_stats(LHASH *table, FILE *out);
|
|
|
|
void OPENSSL_LH_stats_bio(LHASH *table, BIO *out);
|
|
void OPENSSL_LH_node_stats_bio(LHASH *table, BIO *out);
|
|
void OPENSSL_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.
|
|
|
|
OPENSSL_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.
|
|
|
|
OPENSSL_LH_node_stats() prints the number of entries for each 'bucket' in the
|
|
hash table.
|
|
|
|
OPENSSL_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.
|
|
|
|
OPENSSL_LH_stats_bio(), OPENSSL_LH_node_stats_bio() and OPENSSL_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 NOTE
|
|
|
|
These calls should be made under a read lock. Refer to
|
|
L<OPENSSL_LH_COMPFUNC(3)/NOTE> for more details about the locks required
|
|
when using the LHASH data structure.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<bio(7)>, L<OPENSSL_LH_COMPFUNC(3)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|