MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/99 through 03/31/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 3,555 124,529
2-4 a.m. 1,155 39,237
4-6 a.m. 586 20,003
6-8 a.m. 876 27,062
8-10 a.m. 5,733 170,699
10-12 a.m. 17,554 559,629
12-2 p.m. 23,316 772,226
2-4 p.m. 27,545 952,878
4-6 p.m. 23,197 784,067
6-8 p.m. 14,516 497,302
8-10 p.m. 12,866 451,259
10-12 p.m. 8,369 312,015
__________ _____________ _________________
Total: 139,268 4,710,906
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 126
Davis 71
Irvine 350
Los Angeles 72
Riverside 0
San Diego 1,208
San Francisco 15
Santa Barbara 16
Santa Cruz 118
Lawrence Berkeley 24
Lawrence Livermore 0
Los Alamos 0
MELWEB 135,454
Other - UC 1,740
Other-Network UC 74
_____
139,268
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,408
Davis 683
Irvine 3,277
Los Angeles 504
Riverside 0
San Diego 236
San Francisco 366
Santa Barbara 79
Santa Cruz 982
Lawrence Berkeley 25
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,673,864
Other - UC 24,550
Other-Network UC 932
_____
4,710,906
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 1.4
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 0.9
2.0 MAGAZINE & JOURNAL Database Detailed Statistics
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Median session length (minutes:seconds) 26:13
Average session length (minutes:seconds) 30:50
Longest session recorded (minutes:seconds) 247:17
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 1204.2
Retrievals per search - standard deviation 23121
Percent of searches completed with 0 results 32.5%
Percent of searches entered that are long 0.4%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 139,265 12.3%
PRESENT 954,050 84.5%
INIT or CLOSE 33,455 3.0%
OTHER 1,999 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 19,564 10.0% 8,432 43.1% 6 76.3 624.9
TITLE WORD 15,809 8.1% 7,088 44.8% 5 236.6 1996.9
EXACT TITLE 2,262 1.2% 1,645 72.7% 1 56.3 335.5
JOURNAL TITLE 12,790 6.5% 7,874 61.6% 20 2997.2 16661.0
EXACT JOURNAL 5,892 3.0% 2,502 42.5% 760 5387.5 12615.4
SUBJECT WORD 19,599 10.0% 10,259 52.3% 13 773.3 17311.7
EXACT SUBJECT 8,760 4.5% 2,551 29.1% 12 5905.8 61207.4
KEYWORD 75,851 38.7% 17,533 23.1% 30 1532.0 28148.8
DATE 4,244 2.2% 1,485 35.0% 17 168.4 965.0
ADDED SINCE 204 0.1% 136 66.7% 6 819.7 3846.3
PUB TYPE 1,424 0.7% 714 50.1% 10 2082.6 35467.9
SUBFILE 819 0.4% 386 47.1% 34 2867.0 22927.3
ID 37 0.0% 7 18.9% 1 1.0 0.0
ISSN 46 0.0% 42 91.3% 58 226.5 370.5
SIC 6 0.0% 1 16.7% 71 342.6 440.1
ILLUS 33 0.0% 19 57.6% 38 184.5 401.1
ARTICLE 3,386 1.7% 895 26.4% 25 478.9 8524.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 25,398 12.9% 7,971 31.4% 40 921.9 9683.5
Other indexes 8 0.0% 3 37.5% 10 56.4 67.2
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 45,185 32.4% 18,038 39.9% 21 740.0 10091.9
Single 94,080 67.6% 27,244 29.0% 22 2208.6 32718.4
PRESENT commands, by type:
MARC 43.2%
OPAC 33.1%