MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/01 through 01/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,358 42,892
2-4 a.m. 325 5,988
4-6 a.m. 137 2,725
6-8 a.m. 392 17,441
8-10 a.m. 2,973 111,289
10-12 a.m. 9,020 329,562
12-2 p.m. 10,827 422,263
2-4 p.m. 11,972 463,944
4-6 p.m. 8,764 311,512
6-8 p.m. 4,924 191,923
8-10 p.m. 3,935 172,999
10-12 p.m. 2,855 119,557
__________ _____________ _________________
Total: 57,482 2,192,095
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 369
Davis 267
Irvine 95
Los Angeles 975
Riverside 54
San Diego 266
San Francisco 310
Santa Barbara 38
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 48,057
Searchlight 5,874
Other - UC 365
Other-Network UC 811
_____
57,482
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,641
Davis 3,670
Irvine 1,104
Los Angeles 5,312
Riverside 164
San Diego 1,399
San Francisco 4,401
Santa Barbara 510
Santa Cruz 20
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,145,771
Searchlight 1,995
Other - UC 8,574
Other-Network UC 14,534
_____
2,192,095
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 5.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:15
Average session length (minutes:seconds) 22:57
Longest session recorded (minutes:seconds) 305:34
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 1175.3
Retrievals per search - standard deviation 8494.9
Percent of searches completed with 0 results 19.6%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 57,482 11.5%
PRESENT 421,675 84.3%
INIT or CLOSE 19,946 4.0%
OTHER 845 0.2%
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 16,861 18.8% 3,035 18.0% 7 85.0 3138.2
TITLE WORD 5,188 5.8% 1,495 28.8% 2 80.0 462.2
EXACT TITLE 754 0.8% 342 45.4% 1 24.0 159.7
JOURNAL 3,032 3.4% 935 30.8% 5 870.4 6106.8
EXACT JOURNAL 811 0.9% 285 35.1% 15 731.0 1865.9
SUBJECT 2,954 3.3% 1,080 36.6% 45 1980.9 9375.0
EXACT SUBJECT 878 1.0% 249 28.4% 112 1254.9 4138.9
KEYWORD 34,662 38.7% 6,009 17.3% 34 2081.3 11450.6
AUTHOR AFFIL 123 0.1% 75 61.0% 22 177.5 441.9
FORM/PUB TYPE 4,452 5.0% 683 15.3% 37 1028.6 4198.8
DATE 4,820 5.4% 719 14.9% 18 574.0 2696.1
ADDED 470 0.5% 410 87.2% 2 86.6 633.6
CONFERENCE 1 0.0% 1 100% 0 0.0 0.0
LANGUAGE 5,882 6.6% 1,079 18.3% 63 1836.5 8412.7
ISSN 7 0.0% 5 71.4% 1 1.0 0.0
ISBN 27 0.0% 15 55.6% 16 19.9 7.8
ID NUMBER 7 0.0% 6 85.7% 1 1.0 0.0
XXS 60 0.1% 23 38.3% 131 2421.9 5340.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 343 0.4% 68 19.8% 80 566.8 1789.3
AT 6,427 7.2% 1,222 19.0% 42 1659.1 8577.9
Other indexes 1,887 2.1% 477 25.3% 58 1432.3 9690.9
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 19,208 33.4% 4,235 22.0% 15 981.7 6868.3
Single 38,274 66.6% 7,024 18.4% 24 1691.5 10457.4
PRESENT commands, by type:
MARC 45.4%
OPAC 35.8%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)