MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/01 through 09/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,356 21,126
2-4 a.m. 674 8,596
4-6 a.m. 269 2,510
6-8 a.m. 551 11,579
8-10 a.m. 2,823 80,398
10-12 a.m. 6,897 257,664
12-2 p.m. 7,857 316,657
2-4 p.m. 10,049 351,694
4-6 p.m. 7,050 255,174
6-8 p.m. 3,021 101,337
8-10 p.m. 2,246 68,955
10-12 p.m. 1,527 42,698
__________ _____________ _________________
Total: 44,320 1,518,388
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 344
Davis 287
Irvine 83
Los Angeles 1,258
Riverside 25
San Diego 294
San Francisco 321
Santa Barbara 240
Santa Cruz 7
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 2,487
Other - UC 37,935
Other-Network UC 1,039
_____
44,320
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,796
Davis 1,851
Irvine 4,131
Los Angeles 8,710
Riverside 292
San Diego 3,550
San Francisco 3,074
Santa Barbara 1,892
Santa Cruz 188
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 1,472,951
Other-Network UC 15,953
_____
1,518,388
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 9.6
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) 21:49
Average session length (minutes:seconds) 21:59
Longest session recorded (minutes:seconds) 278:08
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 585.9
Retrievals per search - standard deviation 6049.3
Percent of searches completed with 0 results 22.9%
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 44,320 11.8%
PRESENT 316,795 84.1%
INIT or CLOSE 15,433 4.1%
OTHER 209 0.1%
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 17,525 27.4% 3,293 18.8% 7 47.3 318.0
TITLE WORD 5,430 8.5% 1,596 29.4% 2 90.0 795.1
EXACT TITLE 820 1.3% 335 40.9% 1 24.8 218.7
JOURNAL 2,243 3.5% 693 30.9% 8 1334.7 7740.1
EXACT JOURNAL 869 1.4% 354 40.7% 6 709.8 2440.5
SUBJECT 1,715 2.7% 613 35.7% 56 1520.1 5918.9
EXACT SUBJECT 535 0.8% 206 38.5% 62 1908.1 15499.7
KEYWORD 21,343 33.3% 4,991 23.4% 33 1168.6 8751.2
AUTHOR AFFIL 97 0.2% 70 72.2% 6 21.4 34.3
FORM/PUB TYPE 1,553 2.4% 260 16.7% 43 635.0 4441.9
DATE 3,859 6.0% 759 19.7% 8 230.8 1844.7
ADDED 657 1.0% 552 84.0% 2 39.8 336.2
CONFERENCE 7 0.0% 5 71.4% 14 14.0 1.4
LANGUAGE 2,785 4.3% 527 18.9% 57 1074.6 5026.5
ISSN 1 0.0% 0 0.0% 40 40.0 0.0
ISBN 24 0.0% 13 54.2% 14 13.5 12.3
ID NUMBER 4 0.0% 3 75.0% 1 1.0 0.0
XXS 45 0.1% 6 13.3% 30 2275.1 7555.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 198 0.3% 43 21.7% 71 905.2 3362.2
AT 3,056 4.8% 532 17.4% 38 1310.6 7264.6
Other indexes 1,288 2.0% 360 27.9% 36 1664.7 12232.7
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 13,372 30.2% 3,384 25.3% 8 526.2 4213.3
Single 30,948 69.8% 6,785 21.9% 21 857.2 7717.8
PRESENT commands, by type:
MARC 49.6%
OPAC 29.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)