MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 01/12/02 through 01/18/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 74 517
2-4 a.m. 38 363
4-6 a.m. 53 937
6-8 a.m. 41 2,313
8-10 a.m. 228 3,431
10-12 a.m. 543 6,208
12-2 p.m. 623 8,199
2-4 p.m. 751 12,498
4-6 p.m. 421 12,480
6-8 p.m. 291 5,462
8-10 p.m. 187 3,494
10-12 p.m. 134 1,863
__________ _____________ _________________
Total: 3,384 57,765
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 14
Davis 13
Irvine 2
Los Angeles 26
Riverside 1
San Diego 10
San Francisco 3
Santa Barbara 12
Santa Cruz 4
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 1,768
Searchlight 1,284
Other - UC 230
Other-Network UC 15
_____
3,384
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 122
Davis 179
Irvine 0
Los Angeles 76
Riverside 35
San Diego 7
San Francisco 222
Santa Barbara 129
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 55,233
Searchlight 238
Other - UC 1,250
Other-Network UC 271
_____
57,765
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.5
Standard deviation in seconds 26.4
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) 0:03
Average session length (minutes:seconds) 9:00
Longest session recorded (minutes:seconds) 124:02
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 1611.0
Retrievals per search - standard deviation 8505.8
Percent of searches completed with 0 results 31.5%
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 3,384 20.1%
PRESENT 11,137 66.0%
INIT or CLOSE 2,324 13.8%
OTHER 20 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 415 10.4% 110 26.5% 5 76.2 402.8
TITLE WORD 440 11.0% 189 43.0% 2 64.6 243.8
EXACT TITLE 35 0.9% 20 57.1% 1 2.3 3.4
JOURNAL 113 2.8% 46 40.7% 9 2467.4 8407.8
EXACT JOURNAL 436 10.9% 64 14.7% 603 2013.0 5807.3
SUBJECT 108 2.7% 69 63.9% 10 383.2 1605.7
EXACT SUBJECT 50 1.3% 20 40.0% 351 3647.5 6263.3
KEYWORD 2,038 51.1% 648 31.8% 66 3189.1 12614.7
PUB TYPE 42 1.1% 16 38.1% 46 182.9 645.5
DATE 67 1.7% 15 22.4% 8 249.8 783.8
ADDED 22 0.6% 20 90.9% 28 28.0 35.4
LANGUAGE 25 0.6% 8 32.0% 53 185.7 239.1
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 17 0.4% 6 35.3% 53 293.6 518.9
COMPANY NAME 33 0.8% 8 24.2% 46 104.1 202.3
EX COMPANY NAME 1 0.0% 0 0.0% 77 77.0 0.0
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 2 0.1% 2 100% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 10 0.3% 2 20.0% 57 262.0 468.5
AT 132 3.3% 22 16.7% 207 1769.2 5612.9
Other indexes 0 0.0% 0 0.0% 0 0.0 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 491 14.5% 155 31.6% 10 822.4 4245.0
Single 2,893 85.5% 912 31.5% 71 2612.4 10865.4
PRESENT commands, by type:
MARC 46.3%
OPAC 22.1%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)