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| 1 | .Dd $Mdocdate: November 5 2016 $ | ||
| 2 | .Dt LH_STATS 3 | ||
| 3 | .Os | ||
| 4 | .Sh NAME | ||
| 5 | .Nm lh_stats , | ||
| 6 | .Nm lh_node_stats , | ||
| 7 | .Nm lh_node_usage_stats , | ||
| 8 | .Nm lh_stats_bio , | ||
| 9 | .Nm lh_node_stats_bio , | ||
| 10 | .Nm lh_node_usage_stats_bio | ||
| 11 | .Nd LHASH statistics | ||
| 12 | .Sh SYNOPSIS | ||
| 13 | .In openssl/lhash.h | ||
| 14 | .Ft void | ||
| 15 | .Fo lh_stats | ||
| 16 | .Fa "LHASH *table" | ||
| 17 | .Fa "FILE *out" | ||
| 18 | .Fc | ||
| 19 | .Ft void | ||
| 20 | .Fo lh_node_stats | ||
| 21 | .Fa "LHASH *table" | ||
| 22 | .Fa "FILE *out" | ||
| 23 | .Fc | ||
| 24 | .Ft void | ||
| 25 | .Fo lh_node_usage_stats | ||
| 26 | .Fa "LHASH *table" | ||
| 27 | .Fa "FILE *out" | ||
| 28 | .Fc | ||
| 29 | .Ft void | ||
| 30 | .Fo lh_stats_bio | ||
| 31 | .Fa "LHASH *table" | ||
| 32 | .Fa "BIO *out" | ||
| 33 | .Fc | ||
| 34 | .Ft void | ||
| 35 | .Fo lh_node_stats_bio | ||
| 36 | .Fa "LHASH *table" | ||
| 37 | .Fa "BIO *out" | ||
| 38 | .Fc | ||
| 39 | .Ft void | ||
| 40 | .Fo lh_node_usage_stats_bio | ||
| 41 | .Fa "LHASH *table" | ||
| 42 | .Fa "BIO *out" | ||
| 43 | .Fc | ||
| 44 | .Sh DESCRIPTION | ||
| 45 | The | ||
| 46 | .Vt LHASH | ||
| 47 | structure records statistics about most aspects of accessing the hash | ||
| 48 | table. | ||
| 49 | .Pp | ||
| 50 | .Fn lh_stats | ||
| 51 | prints out statistics on the size of the hash table, how many entries | ||
| 52 | are in it, and the number and result of calls to the routines in this | ||
| 53 | library. | ||
| 54 | .Pp | ||
| 55 | .Fn lh_node_stats | ||
| 56 | prints the number of entries for each 'bucket' in the hash table. | ||
| 57 | .Pp | ||
| 58 | .Fn lh_node_usage_stats | ||
| 59 | prints out a short summary of the state of the hash table. | ||
| 60 | It prints the 'load' and the 'actual load'. | ||
| 61 | The load is the average number of data items per 'bucket' in the hash | ||
| 62 | table. | ||
| 63 | The 'actual load' is the average number of items per 'bucket', but only | ||
| 64 | for buckets which contain entries. | ||
| 65 | So the 'actual load' is the average number of searches that will need to | ||
| 66 | find an item in the hash table, while the 'load' is the average number | ||
| 67 | that will be done to record a miss. | ||
| 68 | .Pp | ||
| 69 | .Fn lh_stats_bio , | ||
| 70 | .Fn lh_node_stats_bio , | ||
| 71 | and | ||
| 72 | .Fn lh_node_usage_stats_bio | ||
| 73 | are the same as the above, except that the output goes to a | ||
| 74 | .Vt BIO . | ||
| 75 | .Sh RETURN VALUES | ||
| 76 | These functions do not return values. | ||
| 77 | .Sh SEE ALSO | ||
| 78 | .Xr bio 3 , | ||
| 79 | .Xr lh_new 3 | ||
| 80 | .Sh HISTORY | ||
| 81 | These functions are available in all versions of SSLeay and OpenSSL. | ||
| 82 | .Sh AUTHORS | ||
| 83 | .An Eric Young | ||