MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 07/01/99 through 07/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 13,721 184,171
2-4 a.m. 13,306 103,395
4-6 a.m. 8,804 93,510
6-8 a.m. 16,937 287,218
8-10 a.m. 33,531 767,394
10-12 a.m. 50,137 1,303,507
12-2 p.m. 50,078 1,291,610
2-4 p.m. 50,782 1,423,133
4-6 p.m. 38,321 1,121,786
6-8 p.m. 20,646 519,848
8-10 p.m. 15,726 279,314
10-12 p.m. 13,569 237,825
__________ _____________ _________________
Total: 325,558 7,612,711
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 930
Davis 269
Irvine 1,664
Los Angeles 437
Riverside 21
San Diego 222
San Francisco 378
Santa Barbara 142
Santa Cruz 4
Lawrence Berkeley 159
Lawrence Livermore 11
Los Alamos 0
MELWEB 217,000
Other - UC 5,299
Other-Network UC 99,022
_____
325,558
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 8,261
Davis 1,726
Irvine 8,809
Los Angeles 6,607
Riverside 325
San Diego 704
San Francisco 1,426
Santa Barbara 1,281
Santa Cruz 63
Lawrence Berkeley 1,599
Lawrence Livermore 54
Los Alamos 0
MELWEB 6,402,101
Other - UC 148,789
Other-Network UC 1,030,966
_____
7,612,711
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 7.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 1.9
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 20:56
Average session length (minutes:seconds) 18:01
Longest session recorded (minutes:seconds) 301:33
Average number of searches completed per session 325558
Retrievals per search - median 1.0
Retrievals per search - average 90.3
Retrievals per search - standard deviation 1703.9
Percent of searches completed with 0 results 39.2%
Percent of searches entered that are long 1.6%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 325,556 18.2%
PRESENT 1,355,124 75.6%
INIT or CLOSE 110,042 6.1%
OTHER 1,975 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 89,320 19.9% 28,420 31.8% 6 67.7 444.2
CORPORATE AUTHOR 3,313 0.7% 1,476 44.6% 12 494.5 3652.6
EXACT CORP. AUT. 610 0.1% 144 23.6% 20 630.1 2808.7
TITLE WORD 128532 28.6% 46,856 36.5% 3 49.4 362.0
EXACT TITLE 35,305 7.9% 15,896 45.0% 2 30.4 240.3
SUBJECT 59,990 13.3% 29,893 49.8% 31 514.2 5160.5
EXACT SUBJECT 7,305 1.6% 1,534 21.0% 14 232.6 988.4
UNIFORM TITLE 348 0.1% 70 20.1% 3 155.5 1083.0
SERIES 1,845 0.4% 488 26.4% 12 121.3 394.8
DATE 6,241 1.4% 1,843 29.5% 10 161.8 2386.4
ADDED SINCE 702 0.2% 618 88.0% 2 287.6 1422.1
LANGUAGE 17,954 4.0% 7,687 42.8% 36 462.4 2833.3
LCCN 1,424 0.3% 542 38.1% 1 1.3 1.2
ISBN 26,260 5.8% 17,031 64.9% 1 1.2 12.2
ISSN 386 0.1% 318 82.4% 5 19.9 52.5
DLA ID 18 0.0% 12 66.7% 1 3.0 4.9
MUSIC PUBLISHER 119 0.0% 35 29.4% 5 27.9 92.1
GOV'T DOC NUM 107 0.0% 41 38.3% 1 1.2 0.5
REPORT NUM 48 0.0% 31 64.6% 1 1.2 0.5
STOCK NUM 18 0.0% 0 0.0% 1 219.8 410.6
GPO ITEM NUM 17 0.0% 14 82.4% 85 217.3 276.4
FORM 8,852 2.0% 3,004 33.9% 9 163.6 1761.9
MUSIC KEY 17 0.0% 1 5.9% 21 37.8 67.1
GEO CLASS 7 0.0% 5 71.4% 4 4.0 2.8
THEMATIC NUMBER 68 0.0% 60 88.2% 49 76.4 77.3
SCALE 22 0.0% 2 9.1% 4 9.2 10.6
AT 41,936 9.3% 16,209 38.6% 10 172.2 1059.4
Other indexes 18,794 4.2% 5,971 31.8% 5 187.9 1375.7
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 97,058 29.8% 39,299 40.5% 4 143.0 1224.6
Single 228,498 70.2% 88,222 38.6% 6 150.7 2471.6
PRESENT commands, by type:
MARC 42.8%
OPAC 37.6%