MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/02 through 03/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,207 57,140
2-4 a.m. 1,200 19,280
4-6 a.m. 478 10,420
6-8 a.m. 927 22,110
8-10 a.m. 5,100 147,768
10-12 a.m. 12,034 433,413
12-2 p.m. 14,229 488,279
2-4 p.m. 17,403 623,545
4-6 p.m. 12,974 464,679
6-8 p.m. 7,263 286,976
8-10 p.m. 6,045 224,927
10-12 p.m. 4,057 147,547
__________ _____________ _________________
Total: 83,917 2,926,084
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 400
Davis 246
Irvine 5
Los Angeles 688
Riverside 14
San Diego 616
San Francisco 513
Santa Barbara 84
Santa Cruz 194
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 69,693
Searchlight 8,757
Other - UC 1,669
Other-Network UC 1,038
_____
83,917
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,276
Davis 4,324
Irvine 87
Los Angeles 47,662
Riverside 170
San Diego 3,831
San Francisco 4,242
Santa Barbara 960
Santa Cruz 924
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,805,376
Searchlight 7,680
Other - UC 27,025
Other-Network UC 19,527
_____
2,926,084
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 5.0
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
_________________________________________
Median session length (minutes:seconds) 22:28
Average session length (minutes:seconds) 23:30
Longest session recorded (minutes:seconds) 426:47
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 825.6
Retrievals per search - standard deviation 9495.5
Percent of searches completed with 0 results 20.2%
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 83,917 11.6%
PRESENT 602,913 83.2%
INIT or CLOSE 29,090 4.0%
OTHER 8,878 1.2%
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 26,160 20.4% 4,443 17.0% 7 60.9 1091.4
TITLE WORD 9,919 7.7% 2,517 25.4% 2 102.1 869.5
EXACT TITLE 1,731 1.4% 744 43.0% 1 41.1 691.4
JOURNAL 5,067 4.0% 1,565 30.9% 7 1014.9 3409.1
EXACT JOURNAL 1,500 1.2% 577 38.5% 18 885.8 2230.0
SUBJECT 3,303 2.6% 1,288 39.0% 56 1732.6 9595.1
EXACT SUBJECT 928 0.7% 334 36.0% 61 1319.6 5237.5
KEYWORD 47,097 36.7% 8,708 18.5% 34 1473.8 13459.4
AUTHOR AFFIL 164 0.1% 129 78.7% 12 338.7 1887.3
FORM/PUB TYPE 4,324 3.4% 678 15.7% 38 589.2 3452.0
DATE 6,094 4.8% 927 15.2% 12 326.9 2109.0
ADDED 605 0.5% 482 79.7% 4 7.9 11.4
CONFERENCE 9 0.0% 3 33.3% 9 11.0 11.2
LANGUAGE 7,424 5.8% 1,240 16.7% 49 1119.4 6869.0
ISSN 5 0.0% 4 80.0% 1 1.0 0.0
ISBN 36 0.0% 23 63.9% 9 17.1 23.4
ID NUMBER 2 0.0% 2 100% 0 0.0 0.0
XXS 32 0.0% 6 18.8% 316 2325.7 3959.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 583 0.5% 103 17.7% 55 783.4 3125.3
AT 10,444 8.1% 1,804 17.3% 36 1106.9 7063.0
Other indexes 2,762 2.2% 677 24.5% 48 1678.8 12531.7
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 27,449 32.7% 5,800 21.1% 13 686.4 5475.3
Single 56,468 67.3% 11,140 19.7% 22 1200.7 12337.1
PRESENT commands, by type:
MARC 49.3%
OPAC 33.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)