Matrix performance section
From Linux NFS
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Revision as of 13:15, 16 June 2005
IV.A Comparison of NFSv4 vs. NFSv3 for common use cases
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.A.1 | Time to perform sequence of unique read/write operations | Iozone | Open | Bull | Done by Bull in 2004 |
| IV.A.2 | Time to perform sequence of cacheable read/write operations | Iozone | New | ||
| IV.A.3 | Random reads/writes/opens from many clients to one server | Iozone | Open | Bull | Done by Bull in 2004 |
| IV.A.4 | Industry standard loads | SpecSFS, Specweb99 | New | Tools does not exist | |
| IV.A.5 | Time to read file from beginning to end and then rewrite it | IOzone | In progress | Bull | Part of IOZone standard tests |
| IV.A.6 | Time for appending info to a log file sporadically over time | Iozone | New | Bull | |
| IV.A.7 | Metadata - open/close intensive workload | Iozone | New | Bull | |
| IV.A.8 | Metadata - directory scanning | Iozone | Open | Bull | |
| IV.A.9 | Metadata - create/delete | Iozone | New | Bull | |
| IV.A.10 | Metadata - changing attributes (chown, chmod) while dir scanning | IOZone | New | Bull | |
| IV.A.11 | How many locks can be made and released over time | FFsB | New | Bull | |
| IV.A.12 | Comparison of speeds attainable for different NIC cards |
IV.B NFSv4 on TCP vs. RDMA
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.B | Compare latency, throughput, etc. of NFSv4 on TCP vs. RDMA | New | Only prototypes exist currently; possibly will be more fully implemented by end of 2005 |
IV.C Test performance on different local filesystems
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.C.1 | Analyze whether file system choice affects performance | Iozone | Done | Bull | NFSv4 performances do not depend on the local file-system used |
| IV.C.2 | Test performance with Ext2 on server with metadata /acls | IOZone/FFsB | |||
| IV.C.3 | Test performance with ext3 on server with metadata / acls | IOZone/FFsB | New | ||
| IV.C.4 | Test performance with Reiser3 on server with metadata / acls | IOZone/FFsB | New | ||
| IV.C.5 | Test performance with xfs on server with metadata / acls | IOZone/FFsB | New | ||
| IV.C.6 | Test performance with jfs on server with metadata / acls | IOZone/FFsB | New | ||
| IV.C.7 | Test performance with Reiser4 on server with metadata /acls | IOZone/FFsB | New |
IV.D Test perfomance on different cluster filesystems
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.D.1 | Test performance when using GFS cluster file system | New | |||
| IV.D.2 | Test performance when using Luster cluster file system | New | |||
| IV.D.3 | Test performance when using GPFS cluster file system | New | |||
| IV.D.4 | Test performance when using Polyserve cluster file system | New |
IV.E Evaluation in various load scenarios
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.E.1 | Test performance with large numbers of small (<4k) files | addhoc tool | In progress | Bull | While most NFS functionnalities are not affected by the number of files (1 000 000 of empty files), some bash functions are not responding : ls (answer take more than 15 hours). This question will be splited in sub topics soon. |
| IV.E.2 | Test performance with a few very large (>1G) files | IOzone | Open | Bull | Goals need some clarifications |
| IV.E.3 | 4-16 clients generating high load on 1 server in lab environment | Mail/user dir | New | Bull | |
| IV.E.4 | 2000-5000 clients on 5-10 servers in production environment | Clusters | New | NetApps | |
| IV.E.5 | NFS "Cluster" scenario with 1000+ clients and several servers | Film industry, HPC or visualization workload | New | ||
| IV.E.6 | NFS front end with cluster backend; 100+ clients | New | |||
| IV.E.7 | Pure cluster; 100+ clients | New |
Evaluation in stress scenarios
| ID | test | tool test | status | owner | notes |
|---|---|---|---|---|---|
| IV.F.1 | Measure performance of server when in limited resource situations :
| New | |||
| IV.F.2 | Measure performance of client when in limited resource situations :
| New | |||
| IV.F.3 | Graceful failure mode | New | See Chuck for more info | ||
| IV.F.4 | Measure memory/network/CPU efficiency of client for fixed workload | IOzone - FFsB | In progress | Bull |
Scalability (performance)
|IV.G. |Verify server scalability with clients generating various basic requests (ACCESS, GETATTR, et al) |Iozone |New | | |- |IV.G.2 |Verify server scalability with clients using compound requests |Iozone |New | | |- |IV.G.3 |Measure effects of scaling up number of connections |IOZone |New |Bull |SMP - Measure number of mounts per second on client and server |- |IV.G.4 |Measure effects of increasing number of files |Addhoc tool |Open |Bull | |- |IV.G.5 |Measure effects of increasing file size (with/without cache) |IOzone |Open |Bull | |- |IV.G.6 | | | | | |- |IV.G.7 | | | | | |- |IV.G.8 | | | | | |- |IV.G.9 | | | | | |- |IV.G.10 | | | | | |-
