MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/99 through 04/30/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 3,256 128,660
2-4 a.m. 925 31,902
4-6 a.m. 467 16,047
6-8 a.m. 788 23,024
8-10 a.m. 7,223 203,797
10-12 a.m. 19,053 556,645
12-2 p.m. 23,804 769,928
2-4 p.m. 27,322 874,003
4-6 p.m. 22,078 749,517
6-8 p.m. 12,498 444,888
8-10 p.m. 11,348 416,802
10-12 p.m. 8,463 302,021
__________ _____________ _________________
Total: 137,225 4,517,234
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 121
Davis 30
Irvine 317
Los Angeles 22
Riverside 3
San Diego 880
San Francisco 11
Santa Barbara 7
Santa Cruz 227
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 132,145
Other - UC 3,344
Other-Network UC 115
_____
137,225
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1,316
Davis 295
Irvine 4,102
Los Angeles 176
Riverside 79
San Diego 48
San Francisco 116
Santa Barbara 77
Santa Cruz 634
Lawrence Berkeley 125
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,456,916
Other - UC 49,430
Other-Network UC 3,920
_____
4,517,234
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 23484
Standard deviation in seconds 8.58E6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.4
2.0 MAGAZINE & JOURNAL Database Detailed Statistics
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Median session length (minutes:seconds) 26:34
Average session length (minutes:seconds) 31:20
Longest session recorded (minutes:seconds) 223:03
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 947.6
Retrievals per search - standard deviation 15932
Percent of searches completed with 0 results 31.1%
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 137,220 12.6%
PRESENT 916,887 84.2%
INIT or CLOSE 33,318 3.1%
OTHER 1,214 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 17,821 9.3% 7,605 42.7% 7 116.1 1052.9
TITLE WORD 15,259 8.0% 6,401 41.9% 9 347.2 2403.8
EXACT TITLE 2,164 1.1% 1,625 75.1% 1 73.4 629.0
JOURNAL TITLE 11,242 5.9% 6,909 61.5% 24 2725.0 14697.7
EXACT JOURNAL 4,717 2.5% 2,051 43.5% 1,029 5995.1 12637.1
SUBJECT WORD 18,069 9.5% 9,245 51.2% 18 753.7 14899.1
EXACT SUBJECT 8,972 4.7% 2,325 25.9% 13 5613.4 60671.3
KEYWORD 77,463 40.6% 17,165 22.2% 33 922.0 10584.0
DATE 4,245 2.2% 1,427 33.6% 25 168.2 1350.0
ADDED SINCE 266 0.1% 217 81.6% 13 683.0 4301.3
PUB TYPE 1,303 0.7% 712 54.6% 15 190.0 1370.4
SUBFILE 1,119 0.6% 431 38.5% 28 1264.0 9822.8
ID 3 0.0% 2 66.7% 1 1.0 0.0
ISSN 33 0.0% 29 87.9% 93 19272.0 38418.0
SIC 71 0.0% 23 32.4% 26 1140.3 4792.1
ILLUS 75 0.0% 30 40.0% 34 558.1 2171.7
ARTICLE 3,196 1.7% 893 27.9% 28 265.6 2480.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 24,840 13.0% 7,396 29.8% 49 978.5 5206.6
Other indexes 33 0.0% 19 57.6% 1,344 16261.9 23732.0
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 42,204 30.8% 15,935 37.8% 28 747.7 4561.0
Single 95,016 69.2% 26,713 28.1% 25 1616.3 22381.8
PRESENT commands, by type:
MARC 43.6%
OPAC 33.1%