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[Xen-devel] Testing status of fully virtualized guests (Intel VT) on 32bit XEN unstable



Test Configuration:
Dell PowerEdge 430, Dual Core, 2GB, 3 SATA (Intel VT)
32bit XEN PAE Hypervisor on a RHEL4U2 32bit root  (/dev/sda)
      dom0_mem=256M (required to boot domUs)
32bit fully virtualized (HVM) guest RHEL4U2 256MB (/dev/sdb)
      pae=0, acpi=1, apic=1
      kernargs clock=pit
32bit fully virtualized (HVM) guest RHEL3U6 256MB (/dev/sdc)
      pae=0, acpi=1, apic=1
      kernargs clock=pit

Boot Tests:
Boot a fully virtualized (HVM) guest to the login prompt
Results are marked Pass|Fail where (n) points to a failure description

Regression Tests:
851 tests (850 ltp tests and one 30 minute user load test)
Tests are marked #Pass/#Fail where (n) points to a failure description


XEN 32bit PAE 2 CPU Hypervisor (booted smp):
 ----------------------------------------------------------------------
| XEN      | Guest Kernel (SMP kernels booted with 2 CPU)              |
| Changeset|-----------------------------------------------------------|
|          | RHEL4 UP     | RHEL4 SMP    | RHEL3 UP     | RHEL3 SMP    |
|          |--------------|--------------|--------------|--------------|
|          | Boot | Test  | Boot | Test  | Boot | Test  | Boot | Test  |
|----------|------|-------|------|-------|------|-------|------|-------|
| 9925     | Pass | 850/1 | Fail |       | Pass |Running| Fail |       |
|          |      | (2)   | (1)  |       |      | (2,4) | (1)  |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 9920     | Pass | 850/1 | Fail |       | Pass | 850/1 | Fail |       |
|          |      | (2)   | (1)  |       |      | (2,4) | (1)  |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 9913     | Fail |       | Fail |       | Fail |       | Fail |       |
|          | (3)  |       | (3)  |       | (3)  |       | (3)  |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 9903     | Fail |       | Fail |       | Fail |       | Fail |       |
|          | (3)  |       | (3)  |       | (3)  |       | (3)  |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 9896     | Pass |       | Fail |       | Pass |       | Fail |       |
|          |      |       | (1)  |       |      |       | (1)  |       |
 ----------------------------------------------------------------------

Failures:
1. 32 bit SMP guests hang on boot
   "Uncompressing Linux... Ok, booting the kernel."
2. 32bit UP guest fail ltp gettimeofday02
   "Time is going backwards"
3. [Fixed in 9920] Build broken:
   cc1: warnings being treated as errors
   mm.c: In function subarch_init_memory:
   mm.c:163: warning: format %ld expects type long int,
   but argument 2 has type unsigned int
   mm.c:163: warning: format %ld expects type long int,
   but argument 3 has type unsigned int
4. The RHEL3 UP tests run OK however they take 12 hours
   to complete where on RHEL4 UP the run for ~4 hours.
   There seems to be some performance issue running a
   2.4 kernel fully virtualized guest. One test in
   particular ltp's aso-stress025 takes 4 hour to run
   on RHEL3U6-32b while it take 4 minutes on RHEL4U2-32b.
File: boot.3

[root@tst177 ~]# xm info
host                   : tst177.katana-technology.com
release                : 2.6.16-xen
version                : #1 SMP Wed Apr 26 01:42:49 EDT 2006
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 2793
hw_caps                : 
bfebfbff:20100800:00000000:00000180:0000e43d:00000000:00000001
total_memory           : 2047
free_memory            : 131
xen_major              : 3
xen_minor              : 0
xen_extra              : -unstable
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p 
hvm-3.0-x86_64
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Tue Apr 25 13:22:11 2006 +0100 9744:1ad06bd6832d
cc_compiler            : gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)
cc_compile_by          : build
cc_compile_domain      : katana-technology.com
cc_compile_date        : Wed Apr 26 00:47:38 EDT 2006
[root@tst177 ~]# xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0     1877     2 r-----    36.5
(XEN) (GUEST: 3) Loading ROMBIOS ...
(XEN) (GUEST: 3) Loading Cirrus VGABIOS ...
(XEN) (GUEST: 3) Loading ACPI ...
(XEN) (GUEST: 3) Loading VMXAssist ...
(XEN) (GUEST: 3) VMX go ...
(XEN) (GUEST: 3) VMXAssist (Apr 26 2006)
(XEN) (GUEST: 3) Memory size 256 MB
(XEN) (GUEST: 3) E820 map:
(XEN) (GUEST: 3) 0000000000000000 - 000000000009F800 (RAM)
(XEN) (GUEST: 3) 000000000009F800 - 00000000000A0000 (Reserved)
(XEN) (GUEST: 3) 00000000000A0000 - 00000000000C0000 (Type 16)
(XEN) (GUEST: 3) 00000000000F0000 - 0000000000100000 (Reserved)
(XEN) (GUEST: 3) 0000000000100000 - 000000000FFFE000 (RAM)
(XEN) (GUEST: 3) 000000000FFFE000 - 000000000FFFF000 (Type 18)
(XEN) (GUEST: 3) 000000000FFFF000 - 0000000010000000 (Type 17)
(XEN) (GUEST: 3) 0000000010000000 - 0000000010003000 (ACPI NVS)
(XEN) (GUEST: 3) 0000000010003000 - 000000001000D000 (ACPI Data)
(XEN) (GUEST: 3) 00000000FEC00000 - 0000000100000000 (Type 16)
(XEN) (GUEST: 3)
(XEN) (GUEST: 3) Start BIOS ...
(XEN) (GUEST: 3) Starting emulated 16-bit real-mode: ip=F000:FFF0
(XEN) (GUEST: 3)  rombios.c,v 1.138 2005/05/07 15:55:26 vruppert Exp $
(XEN) (GUEST: 3) Remapping master: ICW2 0x8 -> 0x20
(XEN) (GUEST: 3) Remapping slave: ICW2 0x70 -> 0x28
(XEN) (GUEST: 3) VGABios $Id: vgabios.c,v 1.61 2005/05/24 16:50:50 vruppert Exp 
$
(XEN) (GUEST: 3) HVMAssist BIOS, 8 cpus, $Revision: 1.138 $ $Date: 2005/05/07 
15:55:26 $
(XEN) (GUEST: 3)
(XEN) (GUEST: 3) ata0-0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
(XEN) (GUEST: 3) ata0 master: QEMU HARDDISK ATA-2 Hard-Disk (12997 MBytes)
(XEN) (GUEST: 3) ata0  slave: Unknown device
(XEN) (GUEST: 3)
(XEN) (GUEST: 3) Booting from Hard Disk...
(XEN) (GUEST: 3) int13_harddisk: function 41, unmapped device for ELDL=81
(XEN) (GUEST: 3) int13_harddisk: function 08, unmapped device for ELDL=81
(XEN) (GUEST: 3) *** int 15h function AX=00C0, BX=0000 not yet supported!
(XEN) (GUEST: 3) int13_harddisk: function 15, unmapped device for ELDL=81
(XEN) (GUEST: 3) KBD: unsupported int 16h function 03
(XEN) (GUEST: 3) int13_harddisk: function 15, unmapped device for ELDL=81
(XEN) (GUEST: 3) *** int 15h function AX=E980, BX=E6F5 not yet supported!
(XEN) (GUEST: 3) int13_harddisk: function 02, unmapped device for ELDL=81
(XEN) (GUEST: 3) int13_harddisk: function 41, unmapped device for ELDL=81


32bit SMP guest has hung at this point.  Last message on the guest console:

Uncompressing Linux... Ok, booting the kernel.
File: regression.1

Time            Level   Message
05:00:50        INFO    Reporting status: 'Test Running' for test: 
ltp_gettimeofday02
05:00:52        INFO    Preparing to run test 'ltp_gettimeofday02' using 
profile: /qa/conductor/profiles/ltp/syscalls/gettimeofday02.xml
05:00:52        INFO    Starting test 'ltp_gettimeofday02' using profile: 
/qa/conductor/profiles/ltp/syscalls/gettimeofday02.xml
05:00:52        INFO    Dispatching operation: RemoteShell
05:00:52        FINE    Client sequencer got message requesting the start of a 
new test: ltp_gettimeofday02
05:00:52        FINER   Client sequencer sent message of type: 4 with seq num: 
1 of size: 289 bytes
05:00:52        FINER   Client sequencer handling new operation from control 
sequencer
05:00:52        FINE    Client sequencer looking for class: 
com.katana.conductor.operations.RemoteShell
05:00:52        INFO    Operation RemoteShell running
05:00:52        FINE    Client sequencer was told that an operation is now 
running
05:00:52        INFO    RemoteShell: target node(s) = vs177
05:00:52        INFO    ssh: /usr/bin/ssh root@vs177 cd 
/qa/conductor/tests/ltp/testcases/bin; gettimeofday02
05:00:52        FINE    ssh: waiting for command to finish
05:00:53        INFO       ssh: gettimeofday02 0 INFO : checking if 
gettimeofday is monotonous, takes 30s
05:00:53        INFO       ssh: gettimeofday02 1 FAIL : Time is going backwards 
(old 1145696453.61428 vs new 1145696453.60660!
05:00:53        FINE    executeShellCmd(ssh): exit value is 1
05:00:53        SEVERE  RemoteShell: command failed with error = 1
05:00:53        SEVERE  Operation RemoteShell failed
05:00:53        SEVERE  Reporting status: 'Test Failed' for test: 
ltp_gettimeofday02
05:00:53        FINE    Client sequencer detected operation completed with 
status of: Fail
05:00:53        FINER   Client sequencer sent message of type: 5 with seq num: 
2 of size: 429 bytes
05:00:53        SEVERE  Crash Collection disabled for queue : RHEL4U2-32b-XEN
05:00:53        INFO    Cleaning up after test
Queue: RHEL3U6-32b-XEN32
User:  QA
Hypervisor Build: 20060505_000 Version: main Config: Release Path: 
/repository/trees/main/20060505_000/xen32/xen-unstable/dist Dist:Xen32

Completion status:
  test run completed

Start time: May 4, 2006 3:57:19 PM
End time:   May 5, 2006 4:11:28 AM
Elapsed time: 12 hours 14 minutes 9 seconds

Tests/Config changes in queue: 851
Tests processed:  851
Tests passed:     850
Tests failed:     1
Tests aborted:    0
Forced reboots:   0


aio-stress025 performance issue:

RHEL4U2-32b native hardware:               6 seconds
RHEL4U2-32b domU guest:         3 minutes 31 seconds
RHEL3U6-32b domU guest:       173 minutes  1 second

Here are the timed runs:

dom0 run on native hardware:
----------------------------
[root@tst122 ~]# time ./aio-stress -I500 -o3 -O -r512 -t8 /test/aiodio/junkfile 
/test/aiodio/file2 /test/aiodio/file7 /test/aiodio/file8 /test/aiodio/file3 
/test/aiodio/file4 /test/aiodio/file5 /test/aiodio/file6
adding stage random read
starting with random read
file size 1024MB, record size 512KB, depth 64, ios per iteration 8
max io_submit 64, buffer alignment set to 4KB
threads 8 files 8 contexts 1 context offset 2MB verification off
Running multi thread version num_threads:8
random read on /test/aiodio/file3 (182109.19 MB/s) 1024.00 MB in 0.01s
random read on /test/aiodio/file6 (175975.25 MB/s) 1024.00 MB in 0.01s
random read on /test/aiodio/file4 (176887.20 MB/s) 1024.00 MB in 0.01s
random read on /test/aiodio/file2 (40123.82 MB/s) 1024.00 MB in 0.03s
random read on /test/aiodio/file5 (95934.05 MB/s) 1024.00 MB in 0.01s
random read on /test/aiodio/file8 (4322.75 MB/s) 1024.00 MB in 0.24s
random read on /test/aiodio/file7 (4224.42 MB/s) 1024.00 MB in 0.24s
thread 5 random read totals (2815.35 MB/s) 1024.00 MB in 0.36s
thread 7 random read totals (2770.62 MB/s) 1024.00 MB in 0.37s
thread 4 random read totals (2728.51 MB/s) 1024.00 MB in 0.38s
thread 1 random read totals (2720.31 MB/s) 1024.00 MB in 0.38s
thread 6 random read totals (2860.49 MB/s) 1024.00 MB in 0.36s
thread 2 random read totals (1153.87 MB/s) 1024.00 MB in 0.89s
thread 3 random read totals (1153.87 MB/s) 1024.00 MB in 0.89s
random read on /test/aiodio/junkfile (1.63 MB/s) 4.00 MB in 2.46s
thread 0 random read totals (1.62 MB/s) 4.00 MB in 2.47s
random read throughput (2905.81 MB/s) 7172.00 MB in 2.47s min transfer 4.00MB

real    0m5.748s
user    0m0.050s
sys     0m0.620s
[root@tst122 ~]#                                                                
                       

RHEL4U2-32b domU guest:
-----------------------
[root@vs162 testcases]# time ./kernel/io/ltp-aiodio/aio-stress -I500 -o3 -O 
-r512 -t8 /test/aiodio/junkfile /test/aiodio/file2 /test/aiodio/file7 
/test/aiodio/file8 /test/aiodio/file3 /test/aiodio/file4 /test/aiodio/file5 
/test/aiodio/file6
adding stage random read
starting with random read
file size 1024MB, record size 512KB, depth 64, ios per iteration 8
max io_submit 64, buffer alignment set to 4KB
threads 8 files 8 contexts 1 context offset 2MB verification off
Running multi thread version num_threads:8
random read on /test/aiodio/file2 (7.30 MB/s) 1024.00 MB in 140.35s
thread 1 random read totals (7.27 MB/s) 1024.00 MB in 140.84s
random read on /test/aiodio/file4 (0.06 MB/s) 8.00 MB in 141.47s
thread 5 random read totals (0.06 MB/s) 8.00 MB in 141.60s
random read on /test/aiodio/file5 (0.03 MB/s) 4.00 MB in 141.83s
thread 6 random read totals (0.03 MB/s) 4.00 MB in 141.94s
random read on /test/aiodio/file8 (0.03 MB/s) 4.00 MB in 142.82s
thread 3 random read totals (0.03 MB/s) 4.00 MB in 142.92s
random read on /test/aiodio/file3 (0.03 MB/s) 4.00 MB in 143.04s
thread 4 random read totals (0.03 MB/s) 4.00 MB in 143.08s
random read on /test/aiodio/file6 (0.03 MB/s) 4.00 MB in 143.45s
thread 7 random read totals (0.03 MB/s) 4.00 MB in 143.52s
random read on /test/aiodio/file7 (0.03 MB/s) 4.00 MB in 143.80s
thread 2 random read totals (0.03 MB/s) 4.00 MB in 143.91s
random read on /test/aiodio/junkfile (0.03 MB/s) 4.00 MB in 145.83s
thread 0 random read totals (0.03 MB/s) 4.00 MB in 145.92s
random read throughput (7.24 MB/s) 1056.00 MB in 145.92s min transfer 4.00MB

real    2m31.215s
user    0m0.724s
sys     0m1.916s
[root@vs162 testcases]#

RHEL3U6 domU guest:
-------------------
[root@vs174 testcases]# time ./kernel/io/ltp-aiodio/aio-stress -I500 -o3 -O 
-r512 -t8 /test/aiodio/junkfile /test/aiodio/file2 /test/aiodio/file7 
/test/aiodio/file8 /test/aiodio/file3 /test/aiodio/file4 /test/aiodio/file5 
/test/aiodio/file6
adding stage random read
starting with random read
file size 1024MB, record size 512KB, depth 64, ios per iteration 8
max io_submit 64, buffer alignment set to 4KB
threads 8 files 8 contexts 1 context offset 2MB verification off
Running multi thread version num_threads:8

random read on /test/aiodio/file7 (0.10 MB/s) 1024.00 MB in 10322.46s
thread 2 random read totals (0.10 MB/s) 1024.00 MB in 10323.40s
random read on /test/aiodio/file4 (0.10 MB/s) 1024.00 MB in 10332.31s
thread 5 random read totals (0.10 MB/s) 1024.00 MB in 10332.59s
random read on /test/aiodio/file5 (0.10 MB/s) 1024.00 MB in 10344.51s
thread 6 random read totals (0.10 MB/s) 1024.00 MB in 10344.56s
random read on /test/aiodio/file6 (0.10 MB/s) 1024.00 MB in 10346.31s
thread 7 random read totals (0.10 MB/s) 1024.00 MB in 10346.88s
random read on /test/aiodio/file3 (0.10 MB/s) 1024.00 MB in 10353.64s
thread 4 random read totals (0.10 MB/s) 1024.00 MB in 10353.68s
random read on /test/aiodio/file8 (0.09 MB/s) 972.00 MB in 10373.37s
random read on /test/aiodio/file2 (0.08 MB/s) 860.00 MB in 10373.57s
random read on /test/aiodio/junkfile (0.08 MB/s) 860.00 MB in 10373.59s
thread 1 random read totals (0.08 MB/s) 860.00 MB in 10373.77s
thread 3 random read totals (0.09 MB/s) 972.00 MB in 10373.76s
thread 0 random read totals (0.08 MB/s) 860.00 MB in 10373.77s
random read throughput (0.75 MB/s) 7812.00 MB in 10373.77s min transfer 860.00MB

real    173m1.057s
user    0m1.140s
sys     0m49.050s
[root@vs174 testcases]#



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