MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 05/12/01 through 05/18/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 215 5,333
2-4 a.m. 124 2,342
4-6 a.m. 25 672
6-8 a.m. 57 1,097
8-10 a.m. 256 11,298
10-12 a.m. 1,089 31,036
12-2 p.m. 1,082 32,223
2-4 p.m. 1,307 35,554
4-6 p.m. 975 27,587
6-8 p.m. 611 16,008
8-10 p.m. 619 16,898
10-12 p.m. 454 13,157
__________ _____________ _________________
Total: 6,814 193,205
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 9
Davis 19
Irvine 8
Los Angeles 19
Riverside 1
San Diego 7
San Francisco 2
Santa Barbara 26
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 4,483
Searchlight 2,173
Other - UC 42
Other-Network UC 23
_____
6,814
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 534
Davis 306
Irvine 179
Los Angeles 287
Riverside 0
San Diego 0
San Francisco 12
Santa Barbara 221
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 11
Los Alamos 0
MELWEB 189,924
Searchlight 224
Other - UC 644
Other-Network UC 863
_____
193,205
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 3.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 12:14
Longest session recorded (minutes:seconds) 217:39
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 977.4
Retrievals per search - standard deviation 10648
Percent of searches completed with 0 results 28.3%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 6,814 14.0%
PRESENT 37,814 78.0%
INIT or CLOSE 3,839 7.9%
OTHER 36 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 645 7.3% 157 24.3% 7 46.3 223.1
TITLE WORD 515 5.9% 159 30.9% 3 109.4 510.1
EXACT TITLE 72 0.8% 33 45.8% 1 16.2 51.5
JOURNAL 251 2.9% 93 37.1% 6 327.7 1040.3
EXACT JOURNAL 428 4.9% 67 15.7% 641 2355.4 6223.4
SUBJECT 489 5.6% 214 43.8% 35 1020.6 3864.1
EXACT SUBJECT 271 3.1% 64 23.6% 44 2034.2 6516.2
KEYWORD 4,679 53.2% 1,325 28.3% 35 1532.8 14884.2
PUB TYPE 88 1.0% 21 23.9% 27 384.9 1076.7
DATE 197 2.2% 44 22.3% 26 220.2 553.3
ADDED 20 0.2% 13 65.0% 11 17.0 18.0
LANGUAGE 134 1.5% 43 32.1% 81 565.6 1196.5
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 34 0.4% 16 47.1% 196 2144.4 7276.7
COMPANY NAME 185 2.1% 51 27.6% 25 136.2 332.5
EX COMPANY NAME 8 0.1% 3 37.5% 57 424.2 865.0
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 19 0.2% 9 47.4% 22 161.5 340.2
ID NUMBER 3 0.0% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 80 0.9% 17 21.2% 46 332.8 610.2
AT 660 7.5% 117 17.7% 41 2489.6 14912.3
Other indexes 22 0.2% 14 63.6% 268 168.5 137.3
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 1,525 22.4% 382 25.0% 23 1391.5 10447.2
Single 5,289 77.6% 1,544 29.2% 32 1353.7 13127.9
PRESENT commands, by type:
MARC 49.3%
OPAC 24.3%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)