MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 05/01/01 through 05/31/01
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 919,742
Searchlight 265,645
Berkeley 2,541
Davis 4,372
Irvine 2,136
Los Angeles 3,225
Riverside 556
San Diego 2,602
San Francisco 2,722
Santa Barbara 1,259
Santa Cruz 396
NRLF 0
SRLF 0
LBL 492
LLL 230
Los Alamos 12
Other - UC 5,107
CSL 0
CSU 873
Stanford 920
Other - Non UC 228,764
_____
1,441,594
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 126 12-2 p.m. 416
2-4 a.m. 53 2-4 p.m. 461
4-6 a.m. 33 4-6 p.m. 423
6-8 a.m. 73 6-8 p.m. 247
8-10 a.m. 206 8-10 p.m. 221
10-12 a.m. 384 10-12 p.m. 223
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 17936.90
For Non-UC users (hrs:mins) 336.73
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
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Melvyl Web 1,483,505
Searchlight 199,178
Berkeley 7,111
Davis 9,118
Irvine 3,330
Los Angeles 7,282
Riverside 1,303
San Diego 5,902
San Francisco 6,219
Santa Barbara 2,820
Santa Cruz 1,084
NRLF 0
SRLF 0
LBL 965
LLL 544
Los Alamos 33
Other - UC 10,266
CSL 0
CSU 1,002
Stanford 1,807
Other - Non UC 277,916
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2,019,385
Average number of FIND commands per hour:
12-2 a.m. 1,341 12-2 p.m. 3,163
2-4 a.m. 704 2-4 p.m. 3,425
4-6 a.m. 573 4-6 p.m. 2,954
6-8 a.m. 984 6-8 p.m. 1,815
8-10 a.m. 1,828 8-10 p.m. 1,628
10-12 a.m. 3,109 10-12 p.m. 1,653
Total number of FIND commands
Peak hourly load of 5,603 FIND commands occurred on 05/24/01 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 47,982,341
Searchlight 440,959
Berkeley 72,318
Davis 117,517
Irvine 36,681
Los Angeles 89,728
Riverside 29,251
San Diego 52,798
San Francisco 64,755
Santa Barbara 47,520
Santa Cruz 14,227
NRLF 0
SRLF 0
LBL 14,652
LLL 27,541
Los Alamos 483
Other - UC 124,901
CSL 0
CSU 7,854
Stanford 21,865
Other - Non UC 2,262,232
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51,407,623
Average number of records displayed per hour:
12-2 a.m. 21,510 12-2 p.m. 71,067
2-4 a.m. 10,617 2-4 p.m. 79,487
4-6 a.m. 7,100 4-6 p.m. 71,596
6-8 a.m. 13,255 6-8 p.m. 41,180
8-10 a.m. 36,200 8-10 p.m. 38,387
10-12 a.m. 65,415 10-12 p.m. 37,159
Total number of Records Displayed
Peak hourly load of 133,622 records displayed occurred on 05/04/01 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 723,770 17,047,279 35.8%
TEN 0 0 0.0%
PE 225,621 3,799,554 11.2%
ABI 28,068 159,350 1.4%
BIOSIS 82,145 576,488 4.1%
CC 75,170 1,202,667 3.7%
IAC databases 226,121 6,619,063 11.2%
MAGS 191,871 6,200,935 9.5%
NEWS 24,464 282,326 1.2%
COMP 9,786 135,802 0.5%
INS databases 110,482 2,244,036 5.5%
INS 47,881 1,887,038 2.4%
INS90 17,980 151,315 0.9%
INS85 15,466 72,090 0.8%
INS80 14,401 56,777 0.7%
INS69 14,754 76,816 0.7%
MED databases 417,388 13,301,995 20.7%
MED 231,084 11,897,275 11.4%
MED90 48,717 739,252 2.4%
MED85 38,062 293,270 1.9%
MED80 34,283 160,827 1.7%
MED75 32,333 103,993 1.6%
MED66 32,909 107,378 1.6%
PSYC 107,271 874,257 5.3%.
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 1.0
Standard deviation in seconds 5.6
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)