MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/99 through 01/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 11,411 202,881
2-4 a.m. 7,756 93,440
4-6 a.m. 7,196 84,567
6-8 a.m. 12,707 180,814
8-10 a.m. 28,054 631,189
10-12 a.m. 45,393 1,262,249
12-2 p.m. 48,324 1,613,295
2-4 p.m. 53,154 1,739,841
4-6 p.m. 43,218 1,313,231
6-8 p.m. 27,397 735,145
8-10 p.m. 19,095 512,804
10-12 p.m. 17,625 353,267
__________ _____________ _________________
Total: 321,330 8,722,723
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 815
Davis 564
Irvine 2,386
Los Angeles 122
Riverside 30
San Diego 196
San Francisco 478
Santa Barbara 64
Santa Cruz 320
Lawrence Berkeley 119
Lawrence Livermore 40
Los Alamos 0
MELWEB 228,837
Other - UC 4,674
Other-Network UC 82,685
_____
321,330
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 13,212
Davis 5,157
Irvine 16,943
Los Angeles 1,677
Riverside 411
San Diego 1,787
San Francisco 2,847
Santa Barbara 287
Santa Cruz 4,116
Lawrence Berkeley 368
Lawrence Livermore 416
Los Alamos 0
MELWEB 7,925,024
Other - UC 83,548
Other-Network UC 666,930
_____
8,722,723
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 10620
Standard deviation in seconds 5.76E6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 3.3
2.0 CATALOG Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:30
Average session length (minutes:seconds) 19:46
Longest session recorded (minutes:seconds) 485:01
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 115.7
Retrievals per search - standard deviation 1161.0
Percent of searches completed with 0 results 39.6%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 321,325 16.5%
PRESENT 1,530,800 78.5%
INIT or CLOSE 97,889 5.0%
OTHER 1,163 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 87,700 18.8% 28,724 32.8% 6 86.4 505.9
CORPORATE AUTHOR 3,657 0.8% 1,756 48.0% 8 391.0 2413.8
EXACT CORP. AUT. 570 0.1% 194 34.0% 22 722.8 3015.6
TITLE WORD 124477 26.6% 47,800 38.4% 4 72.0 1146.4
EXACT TITLE 34,726 7.4% 16,980 48.9% 2 36.7 484.5
SUBJECT 73,431 15.7% 36,649 49.9% 36 527.2 2242.1
EXACT SUBJECT 9,527 2.0% 2,337 24.5% 14 267.6 1635.9
UNIFORM TITLE 267 0.1% 56 21.0% 2 304.0 1831.4
SERIES 2,389 0.5% 706 29.6% 8 130.8 457.1
DATE 4,897 1.0% 1,700 34.7% 15 248.7 2271.9
ADDED SINCE 349 0.1% 310 88.8% 2 215.0 940.3
LANGUAGE 21,940 4.7% 9,355 42.6% 40 521.8 2525.0
LCCN 1,694 0.4% 1,084 64.0% 1 1.4 0.9
ISBN 13,011 2.8% 7,601 58.4% 1 1.1 1.0
ISSN 391 0.1% 336 85.9% 6 20.6 39.0
DLA ID 4 0.0% 4 100% 0 0.0 0.0
MUSIC PUBLISHER 43 0.0% 35 81.4% 79 168.5 194.8
GOV'T DOC NUM 106 0.0% 47 44.3% 1 14.9 80.3
REPORT NUM 43 0.0% 29 67.4% 1 1.4 0.7
STOCK NUM 15 0.0% 0 0.0% 2 333.0 630.6
GPO ITEM NUM 8 0.0% 5 62.5% 5,689 4564.0 4082.5
FORM 9,040 1.9% 3,449 38.2% 8 283.0 2970.9
MUSIC KEY 10 0.0% 5 50.0% 3 1352.2 2699.4
GEO CLASS 9 0.0% 7 77.8% 103 103.0 90.5
THEMATIC NUMBER 125 0.0% 110 88.0% 29 97.3 173.9
SCALE 14 0.0% 6 42.9% 2 144.5 395.0
AT 60,995 13.0% 24,301 39.8% 11 214.0 968.4
Other indexes 18,125 3.9% 6,404 35.3% 6 267.3 1669.1
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 112,092 34.9% 47,351 42.2% 5 204.6 1322.3
Single 209,233 65.1% 79,851 38.2% 8 185.0 1565.5
PRESENT commands, by type:
MARC 36.3%
OPAC 45.2%