MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 12/01/00 through 12/31/00
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 495,481
Searchlight 122,969
Berkeley 1,538
Davis 3,557
Irvine 1,459
Los Angeles 2,347
Riverside 255
San Diego 2,281
San Francisco 2,373
Santa Barbara 473
Santa Cruz 387
NRLF 0
SRLF 0
LBL 273
LLL 145
Los Alamos 4
Other - UC 3,710
CSL 0
CSU 426
Stanford 784
Other - Non UC 154,412
_____
792,874
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 63 12-2 p.m. 232
2-4 a.m. 31 2-4 p.m. 280
4-6 a.m. 22 4-6 p.m. 245
6-8 a.m. 43 6-8 p.m. 139
8-10 a.m. 134 8-10 p.m. 117
10-12 a.m. 229 10-12 p.m. 118
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 11701.03
For Non-UC users (hrs:mins) 276.00
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 759,977
Searchlight 98,494
Berkeley 4,569
Davis 7,398
Irvine 2,058
Los Angeles 5,896
Riverside 667
San Diego 4,612
San Francisco 5,181
Santa Barbara 1,038
Santa Cruz 920
NRLF 0
SRLF 0
LBL 483
LLL 245
Los Alamos 3
Other - UC 10,102
CSL 0
CSU 526
Stanford 1,235
Other - Non UC 164,493
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1,067,897
Average number of FIND commands per hour:
12-2 a.m. 716 12-2 p.m. 1,782
2-4 a.m. 388 2-4 p.m. 2,042
4-6 a.m. 385 4-6 p.m. 1,667
6-8 a.m. 571 6-8 p.m. 948
8-10 a.m. 1,244 8-10 p.m. 846
10-12 a.m. 1,762 10-12 p.m. 893
Total number of FIND commands
Peak hourly load of 4,453 FIND commands occurred on 12/08/00 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 25,365,505
Searchlight 231,685
Berkeley 54,788
Davis 85,286
Irvine 18,186
Los Angeles 83,091
Riverside 13,007
San Diego 33,594
San Francisco 43,783
Santa Barbara 13,098
Santa Cruz 17,745
NRLF 0
SRLF 0
LBL 19,236
LLL 4,222
Los Alamos 755
Other - UC 159,519
CSL 0
CSU 4,733
Stanford 13,663
Other - Non UC 1,546,266
_____
27,708,162
Average number of records displayed per hour:
12-2 a.m. 9,848 12-2 p.m. 41,388
2-4 a.m. 5,272 2-4 p.m. 48,797
4-6 a.m. 4,545 4-6 p.m. 42,038
6-8 a.m. 7,925 6-8 p.m. 24,195
8-10 a.m. 25,266 8-10 p.m. 20,597
10-12 a.m. 41,544 10-12 p.m. 18,530
Total number of Records Displayed
Peak hourly load of 105,533 records displayed occurred on 12/08/00 at 10 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 409,977 9,024,130 38.4%
TEN 0 0 0.0%
PE 112,091 2,184,718 10.5%
ABI 13,789 85,042 1.3%
BIOSIS 36,474 266,728 3.4%
CC 44,895 869,997 4.2%
IAC databases 85,256 2,494,827 8.0%
MAGS 71,396 2,355,842 6.7%
NEWS 9,727 100,937 0.9%
COMP 4,133 38,048 0.4%
INS databases 65,047 1,500,946 6.1%
INS 29,961 1,279,059 2.8%
INS90 10,394 102,536 1.0%
INS85 8,564 49,826 0.8%
INS80 7,936 27,004 0.7%
INS69 8,192 42,521 0.8%
MED databases 245,565 8,522,591 23.0%
MED 140,330 7,456,536 13.1%
MED90 29,383 576,264 2.8%
MED85 21,717 220,440 2.0%
MED80 19,056 115,989 1.8%
MED75 17,341 68,271 1.6%
MED66 17,738 85,091 1.7%
PSYC 43,888 337,499 4.1%.
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 0.9
Standard deviation in seconds 5.7
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.8.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)