MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/00 through 05/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 24,942 324,076
2-4 a.m. 16,000 198,083
4-6 a.m. 14,222 161,477
6-8 a.m. 22,512 341,396
8-10 a.m. 44,014 925,997
10-12 a.m. 72,443 1,726,004
12-2 p.m. 78,786 2,091,636
2-4 p.m. 81,711 2,150,110
4-6 p.m. 62,436 1,722,789
6-8 p.m. 42,307 1,064,665
8-10 p.m. 36,940 945,541
10-12 p.m. 28,547 662,382
__________ _____________ _________________
Total: 524,860 12,314,156
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,455
Davis 260
Irvine 1,543
Los Angeles 542
Riverside 82
San Diego 220
San Francisco 204
Santa Barbara 169
Santa Cruz 136
Lawrence Berkeley 51
Lawrence Livermore 12
Los Alamos 0
MELWEB 365,932
Searchlight 13,358
Other - UC 1,892
Other-Network UC 139,004
_____
524,860
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 15,018
Davis 5,357
Irvine 7,873
Los Angeles 9,393
Riverside 553
San Diego 2,029
San Francisco 1,163
Santa Barbara 1,793
Santa Cruz 759
Lawrence Berkeley 743
Lawrence Livermore 87
Los Alamos 0
MELWEB 10,825,389
Searchlight 14,460
Other - UC 30,550
Other-Network UC 1,398,989
_____
12,314,156
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 7.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 1.2
Standard deviation in seconds 3.1
2.0 CATALOG Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:26
Average session length (minutes:seconds) 15:40
Longest session recorded (minutes:seconds) 275:02
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 94.3
Retrievals per search - standard deviation 1081.6
Percent of searches completed with 0 results 42.5%
Percent of searches entered that are long 1.7%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 524,860 18.4%
PRESENT 2,103,384 73.7%
INIT or CLOSE 222,532 7.8%
OTHER 3,557 0.1%
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 122540 15.8% 39,786 32.5% 6 66.3 425.3
CORPORATE AUTHOR 4,537 0.6% 2,068 45.6% 9 306.8 2100.9
EXACT CORP. AUT. 1,449 0.2% 355 24.5% 14 546.5 4135.7
TITLE WORD 176245 22.7% 64,420 36.6% 4 56.4 341.6
EXACT TITLE 50,887 6.6% 24,707 48.6% 2 32.2 258.3
SUBJECT 138090 17.8% 70,060 50.7% 27 406.0 2272.3
EXACT SUBJECT 15,515 2.0% 3,842 24.8% 14 220.7 881.7
UNIFORM TITLE 466 0.1% 114 24.5% 2 190.7 885.3
SERIES 3,026 0.4% 792 26.2% 13 114.9 405.5
DATE 9,517 1.2% 3,111 32.7% 12 208.0 3790.3
ADDED SINCE 4,288 0.6% 4,000 93.3% 2 28.1 190.4
LANGUAGE 42,164 5.4% 18,008 42.7% 30 388.3 2235.7
LCCN 2,173 0.3% 887 40.8% 1 2.4 39.5
ISBN 46,683 6.0% 36,836 78.9% 1 1.3 16.7
ISSN 450 0.1% 397 88.2% 4 65.8 238.7
DLA ID 158 0.0% 9 5.7% 1 1.0 0.0
MUSIC PUBLISHER 53 0.0% 28 52.8% 4 169.8 615.7
GOV'T DOC NUM 158 0.0% 64 40.5% 1 1.4 0.8
REPORT NUM 55 0.0% 27 49.1% 1 27.3 128.5
STOCK NUM 12 0.0% 0 0.0% 1 206.2 395.7
GPO ITEM NUM 30 0.0% 22 73.3% 919 3948.6 6415.3
FORM 13,792 1.8% 4,963 36.0% 10 236.5 2701.9
MUSIC KEY 6 0.0% 3 50.0% 134 123.0 114.9
GEO CLASS 6 0.0% 3 50.0% 8 8.0 3.0
THEMATIC NUMBER 137 0.0% 115 83.9% 6 22.5 36.1
SCALE 9 0.0% 3 33.3% 5 157.3 366.9
AT 115518 14.9% 47,697 41.3% 10 166.2 1017.9
Other indexes 27,355 3.5% 8,286 30.3% 7 237.0 1534.5
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 183,446 34.9% 77,324 42.1% 6 166.4 1317.7
Single 341,414 65.0% 145942 42.7% 7 163.0 1476.7
PRESENT commands, by type:
MARC 38.0%
OPAC 47.1%
SCTmm/dd srv.cat MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS (weekly)