MELSRV PERIODICALS 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. 11,547 109,943
2-4 a.m. 6,680 47,565
4-6 a.m. 7,024 56,905
6-8 a.m. 11,911 92,717
8-10 a.m. 25,487 335,374
10-12 a.m. 42,949 657,954
12-2 p.m. 45,860 738,582
2-4 p.m. 50,085 840,494
4-6 p.m. 38,043 648,362
6-8 p.m. 22,342 332,651
8-10 p.m. 15,380 249,125
10-12 p.m. 13,695 200,599
__________ _____________ _________________
Total: 291,003 4,310,271
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 155
Davis 14
Irvine 2
Los Angeles 0
Riverside 2
San Diego 2
San Francisco 1
Santa Barbara 2
Santa Cruz 5
Lawrence Berkeley 9
Lawrence Livermore 15
Los Alamos 0
MELWEB 205,322
Searchlight 10,046
Other - UC 2,527
Other-Network UC 72,901
_____
291,003
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 826
Davis 39
Irvine 3
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 26
Santa Barbara 0
Santa Cruz 2
Lawrence Berkeley 51
Lawrence Livermore 152
Los Alamos 0
MELWEB 4,147,882
Searchlight 0
Other - UC 24,818
Other-Network UC 136,472
_____
4,310,271
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.1
Standard deviation in seconds 0.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 PERIODICALS Database Detailed Statistics
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Median session length (minutes:seconds) 20:03
Average session length (minutes:seconds) 16:41
Longest session recorded (minutes:seconds) 319:00
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 50.8
Retrievals per search - standard deviation 836.6
Percent of searches completed with 0 results 36.5%
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 291,003 20.1%
PRESENT 972,859 67.3%
INIT or CLOSE 181,501 12.6%
OTHER 354 0.0%
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:
PERIODICAL TITLE110760 34.1% 47,945 43.3% 5 162.2 1558.3
EXACT PE TITLE 51,793 16.0% 10,270 19.8% 2 34.9 866.8
RELATED PE TITLE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT RELATED PE 0 0.0% 0 0.0% 0 0.0 0.0
PERSONAL AUTHOR 7,550 2.3% 6,713 88.9% 10 39.7 588.5
CORP AUTHOR 14,711 4.5% 13,220 89.9% 6 128.2 1116.4
EXACT CORP AUTH 474 0.1% 172 36.3% 11 148.1 269.1
SUBJECT 18,830 5.8% 12,016 63.8% 15 335.0 1266.6
EXACT SUBJECT 1,519 0.5% 428 28.2% 9 421.5 2161.6
SERIES 250 0.1% 212 84.8% 5 232.9 618.5
EXACT SERIES 49 0.0% 26 53.1% 3 25.9 74.4
CODEN 75 0.0% 23 30.7% 1 1.7 3.9
ISBN 16,887 5.2% 16,885 100% 3 2.5 2.1
LCCN 3,196 1.0% 3,121 97.7% 1 1.2 0.5
ISSN 75,137 23.1% 4,923 6.6% 1 1.7 1.1
INDEXED BY 11 0.0% 11 100% 0 0.0 0.0
DLA ID 2 0.0% 1 50.0% 1 1.0 0.0
LOCAL NUM 462 0.1% 448 97.0% 41 28.5 20.6
GOV'T DOC NUM 17 0.0% 15 88.2% 28 28.0 35.4
REPORT NUM 7 0.0% 7 100% 0 0.0 0.0
STOCK NUM 7 0.0% 6 85.7% 1 1.0 0.0
GPO ITEM NUM 28 0.0% 7 25.0% 4 8.2 14.0
AT 22,471 6.9% 5,686 25.3% 2 41.4 331.0
RPE 257 0.1% 160 62.3% 5 196.8 1116.0
RXPE 78 0.0% 47 60.3% 8 80.3 270.8
Other indexes 133 0.0% 74 55.6% 171 2415.3 6557.0
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 33,063 11.4% 15,598 47.2% 2 46.6 500.5
Single 257,940 88.6% 90,654 35.1% 2 83.5 1090.2
PRESENT commands, by type:
MARC 32.4%
OPAC 21.5%
SPEmm/dd srv.pe MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)