MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/01 through 02/28/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 4,273 133,880
2-4 a.m. 1,367 42,209
4-6 a.m. 509 15,387
6-8 a.m. 876 22,487
8-10 a.m. 8,976 269,541
10-12 a.m. 23,442 742,522
12-2 p.m. 30,324 962,239
2-4 p.m. 34,393 1,089,275
4-6 p.m. 27,144 894,236
6-8 p.m. 15,970 558,036
8-10 p.m. 14,304 507,243
10-12 p.m. 9,898 356,195
__________ _____________ _________________
Total: 171,476 5,593,250
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 146
Davis 125
Irvine 110
Los Angeles 133
Riverside 7
San Diego 236
San Francisco 12
Santa Barbara 30
Santa Cruz 16
Lawrence Berkeley 4
Lawrence Livermore 1
Los Alamos 0
MELWEB 158,943
Searchlight 9,666
Other - UC 1,769
Other-Network UC 278
_____
171,476
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,045
Davis 4,710
Irvine 1,763
Los Angeles 1,901
Riverside 145
San Diego 721
San Francisco 32
Santa Barbara 888
Santa Cruz 1,252
Lawrence Berkeley 0
Lawrence Livermore 29
Los Alamos 0
MELWEB 5,529,755
Searchlight 2,555
Other - UC 42,144
Other-Network UC 4,310
_____
5,593,250
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 6.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 MAGAZINE & JOURNAL Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 22:48
Average session length (minutes:seconds) 24:42
Longest session recorded (minutes:seconds) 244:59
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1086.8
Retrievals per search - standard deviation 16173
Percent of searches completed with 0 results 23.0%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 171,476 13.1%
PRESENT 1,075,322 81.9%
INIT or CLOSE 62,657 4.8%
OTHER 2,752 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 20,300 8.4% 6,378 31.4% 5 53.2 396.1
TITLE WORD 18,461 7.6% 6,128 33.2% 4 338.1 8319.1
EXACT TITLE 2,854 1.2% 1,816 63.6% 1 133.2 2148.4
JOURNAL TITLE 12,149 5.0% 6,264 51.6% 9 2182.1 10182.2
EXACT JOURNAL 10,276 4.3% 2,126 20.7% 871 8478.5 33836.0
SUBJECT WORD 18,972 7.9% 8,162 43.0% 13 494.9 11575.6
EXACT SUBJECT 9,511 3.9% 1,752 18.4% 12 4139.9 56722.3
KEYWORD 100389 41.6% 16,858 16.8% 24 756.1 9252.1
DATE 6,172 2.6% 1,461 23.7% 27 150.6 651.4
ADDED SINCE 762 0.3% 489 64.2% 2 239.5 1937.5
PUB TYPE 1,537 0.6% 623 40.5% 11 155.9 972.4
SUBFILE 2,621 1.1% 528 20.1% 42 114.5 416.4
ID 154 0.1% 7 4.5% 1 1.0 0.1
ISSN 53 0.0% 43 81.1% 421 734.3 1388.6
SIC 4 0.0% 3 75.0% 5 5.0 0.0
ILLUS 74 0.0% 27 36.5% 18 87.7 350.4
ARTICLE 4,409 1.8% 879 19.9% 25 244.4 2792.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 32,550 13.5% 7,406 22.8% 27 865.1 6144.1
Other indexes 292 0.1% 236 80.8% 54 4944.5 19244.9
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 55,251 32.2% 16,064 29.1% 16 619.5 5294.8
Single 116,225 67.8% 23,296 20.0% 21 1744.2 21674.8
PRESENT commands, by type:
MARC 45.7%
OPAC 30.3%
SMGmm/dd srv.mags MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS (