MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 05/11/02 through 05/17/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 171 3,450
2-4 a.m. 214 2,487
4-6 a.m. 13 118
6-8 a.m. 50 273
8-10 a.m. 244 5,516
10-12 a.m. 527 10,975
12-2 p.m. 785 15,046
2-4 p.m. 833 17,493
4-6 p.m. 680 18,032
6-8 p.m. 409 8,538
8-10 p.m. 305 10,636
10-12 p.m. 218 5,523
__________ _____________ _________________
Total: 4,449 98,087
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 60
Davis 39
Irvine 48
Los Angeles 38
Riverside 17
San Diego 60
San Francisco 13
Santa Barbara 10
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 2,459
Searchlight 1,633
Other - UC 46
Other-Network UC 24
_____
4,449
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 692
Davis 156
Irvine 476
Los Angeles 540
Riverside 212
San Diego 1,787
San Francisco 94
Santa Barbara 27
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 74
Los Alamos 0
MELWEB 92,437
Searchlight 360
Other - UC 901
Other-Network UC 331
_____
98,087
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.8
Standard deviation in seconds 1.6
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) 10:23
Longest session recorded (minutes:seconds) 193:10
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 810.4
Retrievals per search - standard deviation 10317
Percent of searches completed with 0 results 31.4%
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 4,449 15.7%
PRESENT 20,921 73.9%
INIT or CLOSE 2,946 10.4%
OTHER 9 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 563 10.2% 168 29.8% 7 105.9 758.7
TITLE WORD 324 5.9% 133 41.0% 5 191.4 847.4
EXACT TITLE 53 1.0% 31 58.5% 1 3.5 6.9
JOURNAL 118 2.1% 53 44.9% 5 1124.6 5476.8
EXACT JOURNAL 619 11.3% 81 13.1% 585 1671.0 4039.2
SUBJECT 265 4.8% 153 57.7% 55 986.5 3251.1
EXACT SUBJECT 92 1.7% 25 27.2% 30 1693.3 4576.4
KEYWORD 2,764 50.3% 894 32.3% 26 1253.0 15653.2
PUB TYPE 35 0.6% 9 25.7% 99 621.2 1810.1
DATE 108 2.0% 26 24.1% 11 104.9 590.1
ADDED 32 0.6% 20 62.5% 9 18.1 20.2
LANGUAGE 39 0.7% 16 41.0% 52 550.7 1254.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 11 0.2% 4 36.4% 5 31.1 67.6
COMPANY NAME 61 1.1% 21 34.4% 64 230.8 455.7
EX COMPANY NAME 4 0.1% 0 0.0% 42 240.5 424.3
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 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 28 0.5% 9 32.1% 168 293.7 405.1
AT 379 6.9% 92 24.3% 93 1197.2 4569.1
Other indexes 5 0.1% 5 100% 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 867 19.5% 268 30.9% 19 623.0 3233.0
Single 3,582 80.5% 1,129 31.5% 39 1317.6 13780.2
PRESENT commands, by type:
MARC 55.9%
OPAC 20.6%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)