MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/99 through 04/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 16,461 247,892
2-4 a.m. 8,987 112,842
4-6 a.m. 9,789 100,547
6-8 a.m. 16,616 233,835
8-10 a.m. 34,691 741,582
10-12 a.m. 58,986 1,638,480
12-2 p.m. 61,963 1,887,083
2-4 p.m. 64,003 1,913,219
4-6 p.m. 48,370 1,555,011
6-8 p.m. 33,608 867,229
8-10 p.m. 28,176 748,370
10-12 p.m. 22,140 465,433
__________ _____________ _________________
Total: 403,790 10,511,523
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 831
Davis 417
Irvine 2,370
Los Angeles 590
Riverside 34
San Diego 185
San Francisco 139
Santa Barbara 113
Santa Cruz 208
Lawrence Berkeley 83
Lawrence Livermore 15
Los Alamos 0
MELWEB 296,862
Other - UC 5,272
Other-Network UC 96,671
_____
403,790
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 24,333
Davis 3,943
Irvine 20,240
Los Angeles 6,919
Riverside 287
San Diego 2,630
San Francisco 827
Santa Barbara 1,699
Santa Cruz 1,916
Lawrence Berkeley 463
Lawrence Livermore 8,420
Los Alamos 0
MELWEB 9,686,145
Other - UC 76,387
Other-Network UC 677,314
_____
10,511,523
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.0
Standard deviation in seconds 11.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 1.8
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 21:27
Average session length (minutes:seconds) 19:36
Longest session recorded (minutes:seconds) 288:49
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 121.2
Retrievals per search - standard deviation 1218.3
Percent of searches completed with 0 results 39.9%
Percent of searches entered that are long 1.9%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 403,785 16.7%
PRESENT 1,891,379 78.1%
INIT or CLOSE 124,739 5.2%
OTHER 1,945 0.1%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 104144 17.5% 35,015 33.6% 6 88.6 530.6
CORPORATE AUTHOR 4,714 0.8% 2,384 50.6% 9 513.1 4016.6
EXACT CORP. AUT. 734 0.1% 185 25.2% 23 548.7 3431.1
TITLE WORD 144959 24.4% 56,384 38.9% 4 69.8 496.1
EXACT TITLE 43,663 7.3% 21,220 48.6% 2 30.6 197.9
SUBJECT 105253 17.7% 52,537 49.9% 35 565.8 2796.7
EXACT SUBJECT 13,049 2.2% 3,347 25.6% 14 226.1 866.5
UNIFORM TITLE 478 0.1% 99 20.7% 3 551.6 2419.8
SERIES 2,576 0.4% 665 25.8% 14 171.7 708.6
DATE 8,324 1.4% 2,978 35.8% 12 163.8 2003.0
ADDED SINCE 634 0.1% 574 90.5% 2 369.0 1337.6
LANGUAGE 33,296 5.6% 14,168 42.6% 41 549.0 2606.1
LCCN 2,782 0.5% 1,127 40.5% 1 1.3 1.6
ISBN 18,973 3.2% 10,005 52.7% 1 1.5 21.2
ISSN 401 0.1% 340 84.8% 4 40.3 100.3
DLA ID 5 0.0% 3 60.0% 1 1.0 0.0
MUSIC PUBLISHER 63 0.0% 36 57.1% 7 197.3 641.9
GOV'T DOC NUM 149 0.0% 57 38.3% 1 3.5 18.1
REPORT NUM 57 0.0% 40 70.2% 1 12.3 32.3
STOCK NUM 9 0.0% 0 0.0% 1 972.1 2059.1
GPO ITEM NUM 23 0.0% 15 65.2% 84 372.5 616.2
FORM 11,931 2.0% 4,691 39.3% 10 252.3 2754.8
MUSIC KEY 7 0.0% 2 28.6% 3,436 2762.2 2322.0
GEO CLASS 2 0.0% 1 50.0% 4 4.0 0.0
THEMATIC NUMBER 167 0.0% 143 85.6% 5 212.8 571.0
SCALE 6 0.0% 1 16.7% 2 11.2 21.1
AT 80,133 13.5% 32,936 41.1% 12 231.7 1124.0
Other indexes 17,725 3.0% 5,726 32.3% 7 257.1 1684.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 140,868 34.9% 60,595 43.0% 6 240.2 1552.1
Single 262,917 65.1% 100693 38.3% 7 182.8 1573.9
PRESENT commands, by type:
MARC 37.8%
OPAC 45.5%