MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/01 through 02/28/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,898 62,546
2-4 a.m. 551 16,008
4-6 a.m. 184 6,389
6-8 a.m. 602 22,370
8-10 a.m. 4,671 168,519
10-12 a.m. 13,289 490,164
12-2 p.m. 16,669 649,208
2-4 p.m. 18,265 740,095
4-6 p.m. 13,655 497,670
6-8 p.m. 7,485 278,475
8-10 p.m. 6,122 241,495
10-12 p.m. 4,045 168,540
__________ _____________ _________________
Total: 87,436 3,341,479
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 290
Davis 96
Irvine 79
Los Angeles 402
Riverside 123
San Diego 284
San Francisco 256
Santa Barbara 121
Santa Cruz 12
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 75,522
Searchlight 8,530
Other - UC 908
Other-Network UC 813
_____
87,436
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,198
Davis 1,748
Irvine 15,233
Los Angeles 3,151
Riverside 1,247
San Diego 1,647
San Francisco 2,392
Santa Barbara 3,815
Santa Cruz 117
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,259,193
Searchlight 4,494
Other - UC 23,213
Other-Network UC 20,031
_____
3,341,479
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.5
Standard deviation in seconds 7.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:25
Average session length (minutes:seconds) 23:04
Longest session recorded (minutes:seconds) 280:25
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 748.5
Retrievals per search - standard deviation 6973.9
Percent of searches completed with 0 results 20.9%
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 87,436 11.4%
PRESENT 651,043 84.6%
INIT or CLOSE 30,141 3.9%
OTHER 1,314 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 22,764 16.8% 4,177 18.3% 8 59.8 1059.0
TITLE WORD 8,626 6.4% 2,449 28.4% 2 98.6 834.5
EXACT TITLE 1,673 1.2% 679 40.6% 1 29.4 489.3
JOURNAL 5,091 3.8% 1,644 32.3% 7 1239.9 8272.6
EXACT JOURNAL 1,421 1.1% 540 38.0% 13 896.8 2250.8
SUBJECT 4,978 3.7% 2,093 42.0% 38 1437.2 6932.3
EXACT SUBJECT 1,203 0.9% 393 32.7% 72 1617.6 5594.1
KEYWORD 52,927 39.1% 9,703 18.3% 29 1191.7 9081.4
AUTHOR AFFIL 194 0.1% 118 60.8% 26 393.4 1255.7
FORM/PUB TYPE 5,684 4.2% 1,062 18.7% 33 541.2 2885.2
DATE 4,814 3.6% 730 15.2% 23 395.5 1873.8
ADDED 535 0.4% 443 82.8% 2 14.2 38.0
CONFERENCE 11 0.0% 7 63.6% 168 1000.3 1701.3
LANGUAGE 8,484 6.3% 1,655 19.5% 50 1135.1 6814.2
ISSN 4 0.0% 3 75.0% 832 832.0 0.0
ISBN 21 0.0% 14 66.7% 15 18.6 13.7
ID NUMBER 17 0.0% 9 52.9% 1 1.0 0.0
XXS 57 0.0% 19 33.3% 468 2175.6 4917.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 683 0.5% 145 21.2% 65 1027.6 3547.5
AT 12,789 9.5% 2,433 19.0% 33 1017.8 6662.0
Other indexes 3,233 2.4% 823 25.5% 46 1567.6 10524.4
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 28,820 33.0% 6,554 22.7% 16 704.9 5310.5
Single 58,616 67.0% 11,715 20.0% 21 1060.7 8773.0
PRESENT commands, by type:
MARC 44.9%
OPAC 37.0%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)