MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 10/01/00 through 10/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,997 58,454
2-4 a.m. 313 10,737
4-6 a.m. 132 3,143
6-8 a.m. 566 22,697
8-10 a.m. 5,226 170,721
10-12 a.m. 13,094 489,889
12-2 p.m. 16,042 615,907
2-4 p.m. 18,044 683,186
4-6 p.m. 13,955 543,426
6-8 p.m. 8,118 326,210
8-10 p.m. 5,858 227,005
10-12 p.m. 3,858 161,264
__________ _____________ _________________
Total: 87,203 3,312,639
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 245
Davis 170
Irvine 90
Los Angeles 1,032
Riverside 0
San Diego 410
San Francisco 267
Santa Barbara 65
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 72,539
Searchlight 9,578
Other - UC 1,105
Other-Network UC 1,700
_____
87,203
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,150
Davis 2,058
Irvine 1,043
Los Angeles 7,925
Riverside 0
San Diego 2,554
San Francisco 17,075
Santa Barbara 2,191
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,228,203
Searchlight 943
Other - UC 24,384
Other-Network UC 23,111
_____
3,312,639
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 7.1
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) 22:10
Average session length (minutes:seconds) 22:37
Longest session recorded (minutes:seconds) 290:29
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 941.5
Retrievals per search - standard deviation 7728.0
Percent of searches completed with 0 results 22.0%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 87,203 11.5%
PRESENT 640,953 84.3%
INIT or CLOSE 31,063 4.1%
OTHER 1,317 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 21,741 15.7% 4,255 19.6% 7 47.3 301.1
TITLE WORD 8,264 6.0% 2,291 27.7% 2 90.9 533.3
EXACT TITLE 1,165 0.8% 711 61.0% 1 51.3 272.3
JOURNAL 4,869 3.5% 1,655 34.0% 7 1420.9 10432.0
EXACT JOURNAL 1,326 1.0% 691 52.1% 20 1272.8 7241.8
SUBJECT 6,456 4.7% 2,509 38.9% 40 1291.4 6637.5
EXACT SUBJECT 1,554 1.1% 495 31.9% 99 1619.7 7521.1
KEYWORD 53,406 38.7% 10,176 19.1% 32 1530.7 9969.3
AUTHOR AFFIL 163 0.1% 131 80.4% 16 29.5 32.3
FORM/PUB TYPE 5,784 4.2% 1,276 22.1% 32 594.8 3223.6
DATE 7,036 5.1% 1,411 20.1% 20 527.5 2754.3
ADDED 631 0.5% 579 91.8% 7 21.4 32.3
CONFERENCE 10 0.0% 7 70.0% 12 20.3 24.6
LANGUAGE 9,423 6.8% 2,013 21.4% 54 1432.5 8956.7
ISSN 4 0.0% 4 100% 0 0.0 0.0
ISBN 40 0.0% 17 42.5% 9 10.3 9.4
ID NUMBER 17 0.0% 16 94.1% 1 1.0 0.0
XXS 114 0.1% 40 35.1% 58 925.1 2396.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 708 0.5% 169 23.9% 69 916.3 3451.0
AT 11,444 8.3% 2,234 19.5% 39 1607.8 8961.5
Other indexes 3,980 2.9% 1,019 25.6% 47 1686.9 10296.0
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 29,082 33.3% 7,051 24.2% 17 985.6 7190.3
Single 58,121 66.6% 12,110 20.8% 24 1312.5 9377.0
PRESENT commands, by type:
MARC 45.2%
OPAC 36.6%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)