MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/99 through 09/30/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,057 10,462
2-4 a.m. 1,776 23,414
4-6 a.m. 319 7,510
6-8 a.m. 405 7,451
8-10 a.m. 3,034 63,360
10-12 a.m. 7,200 160,827
12-2 p.m. 6,980 180,738
2-4 p.m. 8,655 202,998
4-6 p.m. 6,563 166,611
6-8 p.m. 2,362 50,299
8-10 p.m. 1,674 42,006
10-12 p.m. 1,115 23,977
__________ _____________ _________________
Total: 41,140 939,653
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 854
Davis 1,110
Irvine 281
Los Angeles 702
Riverside 242
San Diego 1,734
San Francisco 201
Santa Barbara 450
Santa Cruz 550
Lawrence Berkeley 226
Lawrence Livermore 28
Los Alamos 0
MELWEB 32,985
Other - UC 1,095
Other-Network UC 682
_____
41,140
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12,624
Davis 11,593
Irvine 4,023
Los Angeles 6,405
Riverside 5,361
San Diego 7,334
San Francisco 1,898
Santa Barbara 4,062
Santa Cruz 3,522
Lawrence Berkeley 6,897
Lawrence Livermore 586
Los Alamos 0
MELWEB 845,444
Other - UC 17,284
Other-Network UC 12,620
_____
939,653
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 1.3
Standard deviation in seconds 8.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.7
Standard deviation in seconds 1.7
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 21:45
Average session length (minutes:seconds) 20:14
Longest session recorded (minutes:seconds) 206:44
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 564.2
Retrievals per search - standard deviation 4953.7
Percent of searches completed with 0 results 21.9%
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 41,140 14.6%
PRESENT 225,232 80.1%
INIT or CLOSE 14,219 5.1%
OTHER 585 0.2%
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 19,994 36.3% 3,838 19.2% 19 187.9 1377.5
TITLE WORD 19,533 35.4% 4,494 23.0% 13 665.0 4677.0
EXACT TITLE 501 0.9% 302 60.3% 2 391.1 2313.7
JOURNAL 4,252 7.7% 1,584 37.3% 11 2123.3 14164.1
EXACT JOURNAL 1,871 3.4% 541 28.9% 571 3554.8 8634.4
DATE 1,979 3.6% 416 21.0% 7 159.7 1875.5
ADDED SINCE 1,917 3.5% 1,356 70.7% 3 14.9 76.0
SUBFILE 354 0.6% 116 32.8% 26 380.5 2718.3
LANGUAGE 1,000 1.8% 243 24.3% 28 349.8 2063.3
SUBJECT CATEGORY 449 0.8% 183 40.8% 10 95.3 400.8
PUB TYPE 443 0.8% 90 20.3% 29 782.5 9824.2
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 2,811 5.1% 678 24.1% 28 916.3 4805.7
Other indexes 30 0.1% 19 63.3% 30 54.4 42.3
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 11,143 27.1% 3,834 34.4% 6 368.9 3594.1
Single 29,997 72.9% 5,173 17.2% 28 826.4 6055.6
PRESENT commands, by type:
MARC 60.3%
OPAC 24.4%