MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/01 through 06/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,888 43,496
2-4 a.m. 653 14,137
4-6 a.m. 202 6,302
6-8 a.m. 618 22,857
8-10 a.m. 3,460 121,288
10-12 a.m. 8,577 295,047
12-2 p.m. 9,744 359,741
2-4 p.m. 11,264 414,068
4-6 p.m. 9,480 318,916
6-8 p.m. 4,456 162,395
8-10 p.m. 3,302 114,578
10-12 p.m. 2,547 81,763
__________ _____________ _________________
Total: 56,191 1,954,588
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 412
Davis 69
Irvine 136
Los Angeles 973
Riverside 116
San Diego 497
San Francisco 965
Santa Barbara 126
Santa Cruz 23
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 31,078
Searchlight 5,882
Other - UC 14,987
Other-Network UC 927
_____
56,191
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,278
Davis 832
Irvine 1,623
Los Angeles 16,173
Riverside 1,450
San Diego 2,797
San Francisco 12,148
Santa Barbara 2,295
Santa Cruz 273
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,243,601
Searchlight 6,290
Other - UC 651,746
Other-Network UC 9,082
_____
1,954,588
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.1
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) 21:32
Average session length (minutes:seconds) 21:07
Longest session recorded (minutes:seconds) 384:11
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 596.0
Retrievals per search - standard deviation 5657.6
Percent of searches completed with 0 results 21.3%
Percent of searches entered that are long 0.4%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 56,191 12.0%
PRESENT 391,968 83.5%
INIT or CLOSE 20,095 4.3%
OTHER 937 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 20,651 24.8% 3,692 17.9% 7 61.4 872.8
TITLE WORD 6,782 8.2% 1,771 26.1% 2 81.7 992.4
EXACT TITLE 1,273 1.5% 552 43.4% 1 10.7 81.7
JOURNAL 3,390 4.1% 983 29.0% 5 674.1 2712.1
EXACT JOURNAL 888 1.1% 383 43.1% 26 820.1 2276.2
SUBJECT 2,060 2.5% 856 41.6% 66 1579.4 6464.9
EXACT SUBJECT 579 0.7% 188 32.5% 51 1159.3 3896.1
KEYWORD 28,813 34.7% 5,890 20.4% 30 1122.8 8010.8
AUTHOR AFFIL 129 0.2% 88 68.2% 7 28.0 54.1
FORM/PUB TYPE 2,015 2.4% 332 16.5% 35 599.6 3216.2
DATE 3,920 4.7% 617 15.7% 16 285.7 1234.3
ADDED 682 0.8% 543 79.6% 2 41.9 414.9
CONFERENCE 9 0.0% 4 44.4% 12 38.6 56.1
LANGUAGE 4,157 5.0% 729 17.5% 49 1201.5 6416.4
ISSN 6 0.0% 2 33.3% 608 528.0 376.5
ISBN 17 0.0% 13 76.5% 21 17.0 9.7
ID NUMBER 12 0.0% 6 50.0% 1 1.0 0.0
XXS 51 0.1% 13 25.5% 16 554.5 1447.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 274 0.3% 38 13.9% 85 1103.3 8750.4
AT 5,611 6.7% 1,022 18.2% 32 1108.2 5885.6
Other indexes 1,829 2.2% 477 26.1% 35 1987.7 13053.2
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 17,632 31.4% 4,141 23.5% 10 592.5 4506.4
Single 38,559 68.6% 7,812 20.3% 19 829.3 7028.1
PRESENT commands, by type:
MARC 47.3%
OPAC 31.6%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)