MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/02 through 02/28/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,129 23,571
2-4 a.m. 1,444 18,779
4-6 a.m. 687 11,062
6-8 a.m. 1,328 21,428
8-10 a.m. 4,945 84,825
10-12 a.m. 8,997 159,105
12-2 p.m. 10,270 169,682
2-4 p.m. 11,345 198,281
4-6 p.m. 9,041 162,701
6-8 p.m. 4,661 83,636
8-10 p.m. 3,022 52,190
10-12 p.m. 2,099 32,395
__________ _____________ _________________
Total: 59,968 1,017,655
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 1,107
Davis 1,403
Irvine 379
Los Angeles 605
Riverside 413
San Diego 402
San Francisco 313
Santa Barbara 265
Santa Cruz 272
Lawrence Berkeley 131
Lawrence Livermore 136
Los Alamos 0
MELWEB 40,843
Searchlight 12,058
Other - UC 821
Other-Network UC 820
_____
59,968
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12,456
Davis 20,954
Irvine 5,442
Los Angeles 5,911
Riverside 11,237
San Diego 4,665
San Francisco 4,426
Santa Barbara 4,129
Santa Cruz 2,285
Lawrence Berkeley 1,902
Lawrence Livermore 3,123
Los Alamos 0
MELWEB 856,542
Searchlight 62,751
Other - UC 10,991
Other-Network UC 10,841
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1,017,655
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 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 0.6
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 20:29
Average session length (minutes:seconds) 15:25
Longest session recorded (minutes:seconds) 191:06
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 577.6
Retrievals per search - standard deviation 5277.9
Percent of searches completed with 0 results 25.7%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 59,968 17.6%
PRESENT 252,327 74.1%
INIT or CLOSE 27,666 8.1%
OTHER 590 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 25,028 31.6% 5,037 20.1% 15 230.7 1994.3
TITLE WORD 33,498 42.3% 9,395 28.0% 12 758.5 6644.6
EXACT TITLE 733 0.9% 380 51.8% 1 73.1 511.3
JOURNAL 4,854 6.1% 1,931 39.8% 9 2427.8 11587.6
EXACT JOURNAL 2,179 2.8% 694 31.8% 562 3334.5 8909.6
DATE 2,342 3.0% 373 15.9% 7 129.9 1341.7
ADDED SINCE 4,131 5.2% 3,042 73.6% 3 13.5 34.4
SUBFILE 516 0.7% 180 34.9% 20 300.9 1558.6
LANGUAGE 1,033 1.3% 243 23.5% 25 415.9 2600.3
SUBJECT CATEGORY 578 0.7% 148 25.6% 16 314.8 2027.8
PUB TYPE 573 0.7% 123 21.5% 21 1363.1 17063.6
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 3,632 4.6% 934 25.7% 19 557.9 3241.1
Other indexes 77 0.1% 50 64.9% 5 151.2 582.1
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 15,942 26.6% 6,032 37.8% 6 284.6 4249.1
Single 44,026 73.4% 9,364 21.3% 22 918.0 6537.9
PRESENT commands, by type:
MARC 57.2%
OPAC 26.5%
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