MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/99 through 05/31/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,561 20,001
2-4 a.m. 1,341 18,752
4-6 a.m. 204 2,926
6-8 a.m. 619 14,031
8-10 a.m. 3,733 81,840
10-12 a.m. 8,488 170,799
12-2 p.m. 9,677 190,559
2-4 p.m. 11,296 242,048
4-6 p.m. 8,873 187,784
6-8 p.m. 4,727 92,007
8-10 p.m. 3,164 54,730
10-12 p.m. 1,916 38,997
__________ _____________ _________________
Total: 55,599 1,114,474
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 1,030
Davis 1,041
Irvine 555
Los Angeles 529
Riverside 80
San Diego 1,795
San Francisco 356
Santa Barbara 348
Santa Cruz 731
Lawrence Berkeley 67
Lawrence Livermore 218
Los Alamos 87
MELWEB 45,705
Other - UC 2,245
Other-Network UC 812
_____
55,599
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 14,500
Davis 12,213
Irvine 2,115
Los Angeles 6,422
Riverside 1,190
San Diego 6,842
San Francisco 3,168
Santa Barbara 2,464
Santa Cruz 3,140
Lawrence Berkeley 999
Lawrence Livermore 2,597
Los Alamos 291
MELWEB 1,016,959
Other - UC 30,563
Other-Network UC 11,011
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1,114,474
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 6.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 2.0
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 22:12
Average session length (minutes:seconds) 21:18
Longest session recorded (minutes:seconds) 207:43
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 637.5
Retrievals per search - standard deviation 7359.9
Percent of searches completed with 0 results 29.5%
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 55,597 16.7%
PRESENT 260,609 78.4%
INIT or CLOSE 15,811 4.8%
OTHER 330 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 21,971 28.2% 5,205 23.7% 18 235.1 1765.8
TITLE WORD 31,003 39.9% 10,186 32.9% 14 651.3 5158.1
EXACT TITLE 748 1.0% 510 68.2% 2 86.2 501.6
JOURNAL 6,324 8.1% 3,153 49.9% 21 3904.1 26764.8
EXACT JOURNAL 2,522 3.2% 693 27.5% 656 3478.1 7300.2
DATE 2,651 3.4% 554 20.9% 13 300.6 1703.7
ADDED SINCE 1,512 1.9% 1,146 75.8% 2 9.9 21.0
SUBFILE 533 0.7% 195 36.6% 20 230.1 863.2
LANGUAGE 1,727 2.2% 511 29.6% 24 349.6 1388.0
SUBJECT CATEGORY 892 1.1% 379 42.5% 14 305.4 2005.9
PUB TYPE 782 1.0% 205 26.2% 25 334.7 1855.2
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 7,103 9.1% 2,324 32.7% 25 777.7 4044.7
Other indexes 11 0.0% 8 72.7% 5 4.7 0.6
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 17,165 30.9% 6,625 38.6% 11 516.9 3218.6
Single 38,432 69.1% 9,799 25.5% 25 1047.7 10048.0
PRESENT commands, by type:
MARC 56.7%
OPAC 27.6%