MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 04/27/02 through 05/03/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 157 1,445
2-4 a.m. 202 1,905
4-6 a.m. 7 22
6-8 a.m. 19 227
8-10 a.m. 159 3,081
10-12 a.m. 522 15,262
12-2 p.m. 610 13,941
2-4 p.m. 800 20,841
4-6 p.m. 583 13,006
6-8 p.m. 325 9,220
8-10 p.m. 290 4,704
10-12 p.m. 199 4,788
__________ _____________ _________________
Total: 3,873 88,442
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 12
Davis 28
Irvine 29
Los Angeles 27
Riverside 0
San Diego 26
San Francisco 12
Santa Barbara 0
Santa Cruz 9
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,095
Searchlight 1,592
Other - UC 28
Other-Network UC 15
_____
3,873
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 239
Davis 216
Irvine 2,856
Los Angeles 858
Riverside 0
San Diego 643
San Francisco 195
Santa Barbara 0
Santa Cruz 181
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 81,592
Searchlight 467
Other - UC 368
Other-Network UC 827
_____
88,442
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.9
Standard deviation in seconds 2.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 9:48
Longest session recorded (minutes:seconds) 142:32
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 1024.0
Retrievals per search - standard deviation 14603
Percent of searches completed with 0 results 29.9%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 3,873 15.6%
PRESENT 18,277 73.5%
INIT or CLOSE 2,719 10.9%
OTHER 8 0.0%
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 426 9.3% 107 25.1% 7 44.6 294.6
TITLE WORD 345 7.6% 121 35.1% 3 94.6 550.0
EXACT TITLE 22 0.5% 10 45.5% 2 2.9 4.5
JOURNAL 116 2.5% 50 43.1% 6 408.0 1044.9
EXACT JOURNAL 520 11.4% 55 10.6% 532 2474.0 6502.6
SUBJECT 154 3.4% 83 53.9% 35 6536.9 24810.6
EXACT SUBJECT 45 1.0% 12 26.7% 32 1244.2 3222.8
KEYWORD 2,485 54.5% 815 32.8% 24 1344.2 21305.8
PUB TYPE 20 0.4% 3 15.0% 26 135.0 217.9
DATE 81 1.8% 15 18.5% 22 96.4 195.8
ADDED 31 0.7% 28 90.3% 18 29.0 29.1
LANGUAGE 39 0.9% 4 10.3% 82 359.7 552.8
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 4 0.1% 1 25.0% 10 10.3 0.6
COMPANY NAME 31 0.7% 10 32.3% 195 228.6 385.5
EX COMPANY NAME 14 0.3% 1 7.1% 276 230.8 103.9
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 11 11.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 30 0.7% 2 6.7% 121 484.0 1024.7
AT 194 4.3% 30 15.5% 57 995.8 4112.8
Other indexes 5 0.1% 4 80.0% 254 254.0 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 574 14.8% 170 29.6% 11 470.7 2672.5
Single 3,299 85.2% 988 29.9% 38 1633.8 18848.4
PRESENT commands, by type:
MARC 53.5%
OPAC 21.3%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)