MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 02/01/02 through 02/28/02
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 681,658
Searchlight 129,588
Berkeley 2,086
Davis 2,787
Irvine 1,177
Los Angeles 1,674
Riverside 489
San Diego 745
San Francisco 765
Santa Barbara 1,038
Santa Cruz 528
NRLF 0
SRLF 0
LBL 180
LLL 216
Los Alamos 4
Other - UC 7,276
CSL 0
CSU 860
Stanford 917
Other - Non UC 232,494
_____
1,064,482
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 95 12-2 p.m. 288
2-4 a.m. 48 2-4 p.m. 336
4-6 a.m. 39 4-6 p.m. 366
6-8 a.m. 67 6-8 p.m. 255
8-10 a.m. 176 8-10 p.m. 224
10-12 a.m. 311 10-12 p.m. 180
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 0.00
For Non-UC users (hrs:mins) 0.00
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,060,710
Searchlight 95,456
Berkeley 4,934
Davis 4,890
Irvine 1,524
Los Angeles 2,906
Riverside 870
San Diego 1,475
San Francisco 1,020
Santa Barbara 1,649
Santa Cruz 1,749
NRLF 0
SRLF 0
LBL 439
LLL 1,141
Los Alamos 0
Other - UC 10,503
CSL 0
CSU 1,707
Stanford 1,283
Other - Non UC 273,203
_____
1,465,459
Average number of FIND commands per hour:
12-2 a.m. 968 12-2 p.m. 2,105
2-4 a.m. 616 2-4 p.m. 2,392
4-6 a.m. 560 4-6 p.m. 2,391
6-8 a.m. 908 6-8 p.m. 1,748
8-10 a.m. 1,537 8-10 p.m. 1,569
10-12 a.m. 2,272 10-12 p.m. 1,297
Total number of FIND commands
Peak hourly load of 6,921 FIND commands occurred on 02/25/02 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 30,940,476
Searchlight 140,967
Berkeley 56,800
Davis 79,377
Irvine 13,823
Los Angeles 67,214
Riverside 20,582
San Diego 15,972
San Francisco 13,222
Santa Barbara 19,088
Santa Cruz 15,024
NRLF 0
SRLF 0
LBL 6,683
LLL 15,617
Los Alamos 0
Other - UC 131,923
CSL 0
CSU 17,609
Stanford 10,383
Other - Non UC 2,237,330
_____
33,802,090
Average number of records displayed per hour:
12-2 a.m. 13,424 12-2 p.m. 46,498
2-4 a.m. 6,869 2-4 p.m. 51,727
4-6 a.m. 5,303 4-6 p.m. 52,912
6-8 a.m. 9,452 6-8 p.m. 37,416
8-10 a.m. 27,579 8-10 p.m. 34,384
10-12 a.m. 46,833 10-12 p.m. 25,831
Total number of Records Displayed
Peak hourly load of 145,390 records displayed occurred on 02/25/02 at 11 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 668,316 16,187,204 45.6%
TEN 0 0 0.0%
PE 279,670 4,305,479 19.1%
ABI 18,586 91,546 1.3%
BIOSIS 77,871 515,845 5.3%
CC 59,968 1,017,655 4.1%
IAC databases 143,058 4,037,534 9.8%
MAGS 120,722 3,809,025 8.2%
NEWS 16,311 189,547 1.1%
COMP 6,025 38,962 0.4%
INS databases 100,801 1,901,022 6.9%
INS 44,931 1,592,830 3.1%
INS90 15,890 117,537 1.1%
INS85 13,743 66,812 0.9%
INS80 12,826 47,476 0.9%
INS69 13,411 76,367 0.9%
MED databases 0 0 0.0%
MED 0 0 0.0%
MED90 0 0 0.0%
MED85 0 0 0.0%
MED80 0 0 0.0%
MED75 0 0 0.0%
MED66 0 0 0.0%
PSYC 101,796 780,562 6.9%.
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 0.8
Standard deviation in seconds 6.4
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.5.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)