MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 04/06/02 through 04/12/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 549 6,010
2-4 a.m. 411 2,796
4-6 a.m. 287 3,187
6-8 a.m. 371 5,167
8-10 a.m. 971 19,649
10-12 a.m. 2,217 43,376
12-2 p.m. 2,199 34,719
2-4 p.m. 2,783 47,740
4-6 p.m. 1,880 31,402
6-8 p.m. 927 17,595
8-10 p.m. 622 12,957
10-12 p.m. 407 6,746
__________ _____________ _________________
Total: 13,624 231,344
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 317
Davis 287
Irvine 87
Los Angeles 87
Riverside 44
San Diego 71
San Francisco 71
Santa Barbara 76
Santa Cruz 75
Lawrence Berkeley 17
Lawrence Livermore 38
Los Alamos 0
MELWEB 9,104
Searchlight 2,818
Other - UC 189
Other-Network UC 343
_____
13,624
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,247
Davis 2,641
Irvine 1,309
Los Angeles 1,357
Riverside 961
San Diego 1,428
San Francisco 744
Santa Barbara 620
Santa Cruz 585
Lawrence Berkeley 410
Lawrence Livermore 700
Los Alamos 0
MELWEB 195,270
Searchlight 15,807
Other - UC 2,775
Other-Network UC 3,490
_____
231,344
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 6.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 20:35
Average session length (minutes:seconds) 15:48
Longest session recorded (minutes:seconds) 159:37
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 919.7
Retrievals per search - standard deviation 8233.6
Percent of searches completed with 0 results 25.6%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 13,624 18.1%
PRESENT 55,378 73.6%
INIT or CLOSE 6,208 8.2%
OTHER 60 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 5,915 32.3% 1,212 20.5% 15 212.7 1665.3
TITLE WORD 7,675 42.0% 2,156 28.1% 11 1415.8 9336.5
EXACT TITLE 177 1.0% 92 52.0% 1 415.7 3567.5
JOURNAL 1,086 5.9% 389 35.8% 12 3720.2 22582.4
EXACT JOURNAL 480 2.6% 142 29.6% 623 4049.4 14557.1
DATE 621 3.4% 101 16.3% 7 138.7 749.4
ADDED SINCE 1,068 5.8% 767 71.8% 3 11.2 25.0
SUBFILE 139 0.8% 47 33.8% 78 762.3 3591.5
LANGUAGE 204 1.1% 49 24.0% 46 1383.8 6767.6
SUBJECT CATEGORY 155 0.8% 43 27.7% 23 361.4 2427.7
PUB TYPE 131 0.7% 33 25.2% 14 355.0 1339.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 625 3.4% 150 24.0% 36 1226.1 7860.6
Other indexes 9 0.0% 8 88.9% 235 235.0 0.0
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 3,945 29.0% 1,444 36.6% 6 415.7 4248.3
Single 9,679 71.0% 2,046 21.1% 25 1505.3 10690.3
PRESENT commands, by type:
MARC 55.3%
OPAC 27.6%
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