MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/02 through 03/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 8,795 90,386
2-4 a.m. 5,776 44,874
4-6 a.m. 5,916 44,754
6-8 a.m. 12,054 88,039
8-10 a.m. 25,399 352,106
10-12 a.m. 40,663 713,952
12-2 p.m. 43,263 705,145
2-4 p.m. 47,316 800,482
4-6 p.m. 37,182 592,761
6-8 p.m. 19,715 290,447
8-10 p.m. 13,465 226,147
10-12 p.m. 13,368 172,401
__________ _____________ _________________
Total: 272,912 4,121,494
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 19
Davis 9
Irvine 209
Los Angeles 4
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 6
Santa Cruz 0
Lawrence Berkeley 4
Lawrence Livermore 31
Los Alamos 0
MELWEB 191,692
Searchlight 9,284
Other - UC 1,893
Other-Network UC 69,760
_____
272,912
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 50
Davis 13
Irvine 461
Los Angeles 10
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 138
Lawrence Livermore 186
Los Alamos 0
MELWEB 3,958,685
Searchlight 0
Other - UC 17,873
Other-Network UC 144,078
_____
4,121,494
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.2
Standard deviation in seconds 1.9
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) 20:02
Average session length (minutes:seconds) 16:18
Longest session recorded (minutes:seconds) 479:54
Average number of searches completed per session 13646
Retrievals per search - median 1.0
Retrievals per search - average 57.6
Retrievals per search - standard deviation 870.0
Percent of searches completed with 0 results 38.2%
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 272,912 20.6%
PRESENT 884,490 66.9%
INIT or CLOSE 164,526 12.4%
OTHER 337 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 TITLE112374 36.3% 46,071 41.0% 5 161.9 1458.1
EXACT PE TITLE 53,922 17.4% 11,978 22.2% 2 41.4 1016.0
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 7,640 2.5% 7,082 92.7% 2 14.6 72.2
CORP AUTHOR 14,054 4.5% 12,624 89.8% 6 104.7 499.5
EXACT CORP AUTH 501 0.2% 212 42.3% 5 176.7 674.8
SUBJECT 19,348 6.3% 12,126 62.7% 15 339.1 1333.5
EXACT SUBJECT 1,567 0.5% 524 33.4% 9 443.6 2209.8
SERIES 284 0.1% 241 84.9% 4 61.6 180.8
EXACT SERIES 58 0.0% 21 36.2% 5 93.5 222.3
CODEN 107 0.0% 24 22.4% 1 1.2 0.5
ISBN 16,459 5.3% 16,455 100% 1 1.5 1.0
LCCN 2,481 0.8% 2,369 95.5% 1 1.8 6.4
ISSN 53,733 17.4% 3,551 6.6% 1 1.7 1.1
INDEXED BY 20 0.0% 20 100% 0 0.0 0.0
DLA ID 1 0.0% 1 100% 0 0.0 0.0
LOCAL NUM 431 0.1% 425 98.6% 21 25.2 27.3
GOV'T DOC NUM 45 0.0% 44 97.8% 53 53.0 0.0
REPORT NUM 6 0.0% 6 100% 0 0.0 0.0
STOCK NUM 9 0.0% 9 100% 0 0.0 0.0
GPO ITEM NUM 8 0.0% 2 25.0% 5 5.8 4.9
AT 25,931 8.4% 6,332 24.4% 2 38.4 361.0
RPE 284 0.1% 215 75.7% 7 210.5 856.5
RXPE 82 0.0% 55 67.1% 4 14.4 32.0
Other indexes 139 0.0% 93 66.9% 83 2528.8 7974.4
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 35,812 13.1% 15,478 43.2% 2 41.1 434.4
Single 237,100 86.9% 88,860 37.5% 2 100.4 1167.6
PRESENT commands, by type:
MARC 31.8%
OPAC 21.5%
SPEmm/dd srv.pe MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)