MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 07/01/00 through 07/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,025 22,086
2-4 a.m. 285 9,352
4-6 a.m. 113 5,852
6-8 a.m. 493 7,873
8-10 a.m. 2,994 107,305
10-12 a.m. 7,503 296,020
12-2 p.m. 9,134 373,090
2-4 p.m. 10,796 419,020
4-6 p.m. 7,707 305,956
6-8 p.m. 3,828 155,442
8-10 p.m. 1,552 58,156
10-12 p.m. 1,286 49,532
__________ _____________ _________________
Total: 46,716 1,809,684
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 366
Davis 265
Irvine 26
Los Angeles 890
Riverside 0
San Diego 919
San Francisco 383
Santa Barbara 200
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 39,067
Searchlight 3,038
Other - UC 423
Other-Network UC 1,137
_____
46,716
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 7,211
Davis 1,629
Irvine 646
Los Angeles 25,056
Riverside 0
San Diego 3,941
San Francisco 4,301
Santa Barbara 2,600
Santa Cruz 85
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,725,454
Searchlight 16,298
Other - UC 11,757
Other-Network UC 10,706
_____
1,809,684
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.7
Standard deviation in seconds 5.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.9
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 21:08
Average session length (minutes:seconds) 20:18
Longest session recorded (minutes:seconds) 235:45
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 786.5
Retrievals per search - standard deviation 7180.8
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 46,716 11.0%
PRESENT 360,612 84.7%
INIT or CLOSE 17,485 4.1%
OTHER 887 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 15,970 22.8% 2,890 18.1% 6 51.5 706.1
TITLE WORD 4,730 6.7% 1,284 27.1% 1 84.0 1072.6
EXACT TITLE 1,067 1.5% 443 41.5% 1 18.7 235.2
JOURNAL 3,130 4.5% 991 31.7% 4 797.3 3778.0
EXACT JOURNAL 1,140 1.6% 443 38.9% 12 695.7 2010.3
SUBJECT 2,480 3.5% 1,039 41.9% 39 1816.9 7781.5
EXACT SUBJECT 561 0.8% 209 37.3% 113 1254.3 3042.3
KEYWORD 24,738 35.3% 4,756 19.2% 33 1494.0 10444.5
AUTHOR AFFIL 89 0.1% 67 75.3% 9 29.0 43.3
FORM/PUB TYPE 1,766 2.5% 307 17.4% 29 586.4 2963.4
DATE 3,637 5.2% 563 15.5% 9 276.5 2246.0
ADDED 655 0.9% 555 84.7% 6 27.2 71.3
CONFERENCE 4 0.0% 4 100% 0 0.0 0.0
LANGUAGE 3,808 5.4% 801 21.0% 45 1160.8 6397.6
ISSN 6 0.0% 4 66.7% 44 44.0 46.7
ISBN 94 0.1% 65 69.1% 14 14.6 11.5
ID NUMBER 16 0.0% 11 68.8% 1 1.0 0.0
XXS 44 0.1% 18 40.9% 69 2013.4 5734.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 279 0.4% 63 22.6% 90 1457.3 4724.4
AT 4,612 6.6% 883 19.1% 44 1507.3 6840.6
Other indexes 1,256 1.8% 305 24.3% 47 1738.6 9192.4
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 15,502 33.2% 3,734 24.1% 9 694.3 4716.0
Single 31,214 66.8% 6,266 20.1% 22 1145.2 9256.7
PRESENT commands, by type:
MARC 46.8%
OPAC 35.7%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)