MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/01 through 05/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,835 99,425
2-4 a.m. 889 39,958
4-6 a.m. 287 8,376
6-8 a.m. 631 22,286
8-10 a.m. 5,119 183,324
10-12 a.m. 15,442 542,455
12-2 p.m. 18,990 704,736
2-4 p.m. 21,455 789,155
4-6 p.m. 17,051 652,359
6-8 p.m. 10,048 391,026
8-10 p.m. 8,348 309,739
10-12 p.m. 6,176 241,437
__________ _____________ _________________
Total: 107,271 3,984,276
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 354
Davis 316
Irvine 59
Los Angeles 691
Riverside 58
San Diego 1,004
San Francisco 373
Santa Barbara 236
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 92,207
Searchlight 10,488
Other - UC 649
Other-Network UC 836
_____
107,271
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,905
Davis 5,296
Irvine 1,903
Los Angeles 13,852
Riverside 1,401
San Diego 5,983
San Francisco 5,010
Santa Barbara 2,934
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,848,337
Searchlight 9,776
Other - UC 15,431
Other-Network UC 68,448
_____
3,984,276
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 6.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:20
Average session length (minutes:seconds) 22:59
Longest session recorded (minutes:seconds) 298:45
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 669.5
Retrievals per search - standard deviation 5999.3
Percent of searches completed with 0 results 21.4%
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 107,271 11.1%
PRESENT 820,608 85.0%
INIT or CLOSE 36,420 3.8%
OTHER 1,532 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 28,382 16.7% 5,513 19.4% 7 71.1 1037.3
TITLE WORD 12,120 7.1% 3,381 27.9% 2 91.8 976.5
EXACT TITLE 2,102 1.2% 939 44.7% 1 27.5 292.0
JOURNAL 6,411 3.8% 2,205 34.4% 6 722.3 3686.4
EXACT JOURNAL 1,775 1.0% 739 41.6% 10 685.1 1794.2
SUBJECT 6,063 3.6% 2,404 39.6% 43 1199.5 4934.7
EXACT SUBJECT 1,467 0.9% 507 34.6% 62 1142.7 4676.6
KEYWORD 64,826 38.2% 12,178 18.8% 28 1125.8 8103.2
AUTHOR AFFIL 150 0.1% 116 77.3% 10 207.4 1007.5
FORM/PUB TYPE 6,304 3.7% 1,209 19.2% 37 460.5 2451.2
DATE 7,155 4.2% 1,387 19.4% 21 377.8 1772.4
ADDED 618 0.4% 486 78.6% 3 44.9 391.1
CONFERENCE 10 0.0% 8 80.0% 152 152.0 55.2
LANGUAGE 10,314 6.1% 2,034 19.7% 51 1067.6 6465.9
ISSN 8 0.0% 6 75.0% 204 203.5 26.2
ISBN 40 0.0% 16 40.0% 12 10.8 8.5
ID NUMBER 18 0.0% 13 72.2% 1 1.0 0.0
XXS 114 0.1% 42 36.8% 36 932.8 2758.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 1,000 0.6% 215 21.5% 54 510.0 2335.1
AT 16,435 9.7% 3,217 19.6% 33 1001.3 6118.4
Other indexes 4,440 2.6% 1,178 26.5% 44 1027.3 7973.2
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 36,418 33.9% 8,419 23.1% 16 689.4 5068.3
Single 70,853 66.0% 14,514 20.5% 20 932.2 7450.6
PRESENT commands, by type:
MARC 48.4%
OPAC 36.1%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)