MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/02 through 03/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,288 31,676
2-4 a.m. 1,399 18,857
4-6 a.m. 933 11,403
6-8 a.m. 1,762 21,750
8-10 a.m. 5,510 100,272
10-12 a.m. 8,987 160,163
12-2 p.m. 8,862 155,129
2-4 p.m. 11,310 194,294
4-6 p.m. 8,723 143,295
6-8 p.m. 3,641 60,252
8-10 p.m. 2,621 49,733
10-12 p.m. 1,866 36,371
__________ _____________ _________________
Total: 57,902 983,195
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 1,073
Davis 1,409
Irvine 298
Los Angeles 291
Riverside 358
San Diego 474
San Francisco 343
Santa Barbara 376
Santa Cruz 322
Lawrence Berkeley 234
Lawrence Livermore 199
Los Alamos 0
MELWEB 38,603
Searchlight 11,620
Other - UC 989
Other-Network UC 1,313
_____
57,902
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 10,882
Davis 14,501
Irvine 3,917
Los Angeles 6,635
Riverside 7,517
San Diego 6,857
San Francisco 3,208
Santa Barbara 6,559
Santa Cruz 2,477
Lawrence Berkeley 8,274
Lawrence Livermore 5,176
Los Alamos 0
MELWEB 814,755
Searchlight 68,463
Other - UC 8,098
Other-Network UC 15,876
_____
983,195
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 1.6
Standard deviation in seconds 7.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 20:30
Average session length (minutes:seconds) 15:27
Longest session recorded (minutes:seconds) 169:09
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 693.9
Retrievals per search - standard deviation 8157.5
Percent of searches completed with 0 results 26.1%
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 57,902 17.2%
PRESENT 249,219 74.2%
INIT or CLOSE 26,915 8.0%
OTHER 1,851 0.6%
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 24,885 32.6% 5,135 20.6% 15 211.4 1860.8
TITLE WORD 31,807 41.7% 9,070 28.5% 11 852.3 6826.8
EXACT TITLE 682 0.9% 346 50.7% 1 28.7 291.1
JOURNAL 4,686 6.1% 1,867 39.8% 11 3978.7 29917.0
EXACT JOURNAL 2,115 2.8% 708 33.5% 566 4085.5 10700.9
DATE 2,181 2.9% 369 16.9% 7 95.9 720.2
ADDED SINCE 4,517 5.9% 3,311 73.3% 3 22.5 358.3
SUBFILE 501 0.7% 181 36.1% 17 674.1 4054.5
LANGUAGE 813 1.1% 202 24.8% 28 519.8 2831.9
SUBJECT CATEGORY 522 0.7% 145 27.8% 12 173.3 1361.3
PUB TYPE 434 0.6% 110 25.3% 20 283.9 1468.8
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 3,021 4.0% 791 26.2% 22 846.8 5442.5
Other indexes 53 0.1% 33 62.3% 3 94.0 285.0
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 15,546 26.8% 6,102 39.3% 5 301.6 3147.1
Single 42,356 73.1% 9,022 21.3% 23 1119.9 10599.2
PRESENT commands, by type:
MARC 58.1%
OPAC 25.6%
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