MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/02 through 04/30/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,296 30,198
2-4 a.m. 1,446 13,214
4-6 a.m. 988 11,852
6-8 a.m. 1,405 20,015
8-10 a.m. 4,475 80,214
10-12 a.m. 9,768 168,461
12-2 p.m. 9,323 155,683
2-4 p.m. 10,802 189,458
4-6 p.m. 8,383 138,374
6-8 p.m. 4,071 69,424
8-10 p.m. 2,999 52,945
10-12 p.m. 1,989 32,845
__________ _____________ _________________
Total: 57,945 962,683
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 1,000
Davis 1,382
Irvine 391
Los Angeles 498
Riverside 286
San Diego 663
San Francisco 304
Santa Barbara 459
Santa Cruz 333
Lawrence Berkeley 123
Lawrence Livermore 129
Los Alamos 0
MELWEB 38,167
Searchlight 11,920
Other - UC 994
Other-Network UC 1,296
_____
57,945
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12,043
Davis 14,225
Irvine 9,228
Los Angeles 5,372
Riverside 5,556
San Diego 10,103
San Francisco 2,838
Santa Barbara 7,193
Santa Cruz 3,443
Lawrence Berkeley 2,932
Lawrence Livermore 3,425
Los Alamos 0
MELWEB 790,520
Searchlight 67,703
Other - UC 15,528
Other-Network UC 12,574
_____
962,683
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 6.7
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) 20:33
Average session length (minutes:seconds) 15:37
Longest session recorded (minutes:seconds) 197:32
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 792.5
Retrievals per search - standard deviation 9264.0
Percent of searches completed with 0 results 26.3%
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 57,945 17.4%
PRESENT 247,386 74.3%
INIT or CLOSE 27,459 8.2%
OTHER 302 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 24,308 31.2% 4,948 20.4% 14 191.9 1581.0
TITLE WORD 32,609 41.9% 9,385 28.8% 11 966.7 7741.9
EXACT TITLE 778 1.0% 423 54.4% 1 326.3 2956.6
JOURNAL 4,771 6.1% 1,809 37.9% 11 4732.0 33027.8
EXACT JOURNAL 2,183 2.8% 676 31.0% 606 3879.2 10668.0
DATE 2,624 3.4% 482 18.4% 7 183.2 2047.5
ADDED SINCE 4,185 5.4% 3,097 74.0% 3 13.0 32.1
SUBFILE 439 0.6% 142 32.3% 36 687.1 2973.6
LANGUAGE 1,190 1.5% 274 23.0% 33 1091.0 7034.8
SUBJECT CATEGORY 546 0.7% 161 29.5% 30 627.3 3147.3
PUB TYPE 653 0.8% 133 20.4% 31 1234.9 11762.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 3,545 4.5% 896 25.3% 28 1267.7 6654.2
Other indexes 81 0.1% 57 70.4% 6 1481.9 3931.6
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 16,350 28.2% 6,040 36.9% 6 459.7 4141.9
Single 41,595 71.8% 9,188 22.1% 23 1270.7 12142.4
PRESENT commands, by type:
MARC 58.7%
OPAC 26.0%
SCCmm/dd srv.cc MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS (we