MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 03/01/00 through 03/31/00
1.0 GENERAL STATISTICS (includes all databases)
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1.1 System load
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1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 776,575
Searchlight 72,473
Berkeley 3,055
Davis 2,992
Irvine 2,152
Los Angeles 2,402
Riverside 315
San Diego 13,163
San Francisco 3,019
Santa Barbara 612
Santa Cruz 586
NRLF 0
SRLF 0
LBL 403
LLL 263
Los Alamos 7
Other - UC 4,705
CSL 0
CSU 689
Stanford 2,252
Other - Non UC 157,875
_____
1,043,538
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 93 12-2 p.m. 328
2-4 a.m. 34 2-4 p.m. 385
4-6 a.m. 23 4-6 p.m. 338
6-8 a.m. 42 6-8 p.m. 201
8-10 a.m. 139 8-10 p.m. 185
10-12 a.m. 294 10-12 p.m. 180
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 15036.60
For Non-UC users (hrs:mins) 481.10
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,401,348
Searchlight 46,194
Berkeley 7,195
Davis 6,048
Irvine 2,903
Los Angeles 5,730
Riverside 702
San Diego 15,269
San Francisco 6,284
Santa Barbara 1,472
Santa Cruz 1,240
NRLF 0
SRLF 0
LBL 1,220
LLL 533
Los Alamos 1
Other - UC 14,050
CSL 0
CSU 864
Stanford 3,643
Other - Non UC 186,475
_____
1,701,171
Average number of FIND commands per hour:
12-2 a.m. 1,001 12-2 p.m. 2,801
2-4 a.m. 486 2-4 p.m. 3,210
4-6 a.m. 370 4-6 p.m. 2,659
6-8 a.m. 617 6-8 p.m. 1,623
8-10 a.m. 1,377 8-10 p.m. 1,534
10-12 a.m. 2,410 10-12 p.m. 1,507
Total number of FIND commands
Peak hourly load of 4,992 FIND commands occurred on 03/09/00 at 3 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 44,431,554
Searchlight 492,877
Berkeley 109,968
Davis 86,151
Irvine 23,742
Los Angeles 52,029
Riverside 14,929
San Diego 77,990
San Francisco 72,850
Santa Barbara 21,586
Santa Cruz 13,098
NRLF 0
SRLF 0
LBL 20,190
LLL 8,879
Los Alamos 10
Other - UC 213,300
CSL 0
CSU 16,496
Stanford 31,641
Other - Non UC 1,824,324
_____
47,511,614
Average number of records displayed per hour:
12-2 a.m. 16,860 12-2 p.m. 69,101
2-4 a.m. 7,519 2-4 p.m. 78,866
4-6 a.m. 4,277 4-6 p.m. 69,742
6-8 a.m. 8,905 6-8 p.m. 38,951
8-10 a.m. 29,472 8-10 p.m. 37,594
10-12 a.m. 59,950 10-12 p.m. 35,132
Total number of Records Displayed
Peak hourly load of 133,158 records displayed occurred on 03/17/00 at 4 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 657,305 15,709,804 38.6%
TEN 0 0 0.0%
PE 167,485 3,782,218 9.8%
ABI 25,325 186,257 1.5%
BIOSIS 55,996 435,229 3.3%
CC 66,532 1,345,875 3.9%
IAC databases 185,411 5,890,887 10.9%
MAGS 152,702 5,469,966 9.0%
NEWS 23,261 303,828 1.4%
COMP 9,448 117,093 0.6%
INS databases 86,307 2,263,917 5.1%
INS 45,894 1,869,385 2.7%
INS90 13,476 180,522 0.8%
INS85 9,784 87,703 0.6%
INS80 8,491 50,562 0.5%
INS69 8,662 75,745 0.5%
MED databases 361,320 12,492,073 21.2%
MED 201,029 10,758,923 11.8%
MED90 45,499 968,148 2.7%
MED85 33,038 338,729 1.9%
MED80 28,615 180,758 1.7%
MED75 26,288 114,455 1.5%
MED66 26,851 131,060 1.6%
PSYC 73,809 625,381 4.3%.
1.3 Response time
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Search response time from receipt of search request
at CDL until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 7.0
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.5
Standard deviation in seconds 1.4.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)