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On 17/09/11 20:51, James L. Evans wrote:
>> Not sure why that would be true. Do they use the same versions
>> of BackupPC?
>
> lenny was 3.1.0-4. squeeze is 3.1.0-9
>
>> It's also very likely that the nightly parameter was changed:
>> Maybe it was, say, 10, 1, 2, 3... and the new one > is 1, 2,
>> 3...; that means that the nightly is moved to a time when it is
>> very likely a backup is running (1AM) > > instead of a time when
>> it's unlikely to be doing so (10AM).
>
> Old schedule was [3.1] on lenny and squeeze. New schedule is now
> [16, 3.1] (with dump blacked out at 16).
>
> Given that BackupPC_nightly slows the whole machine down (not just
> the BackupPC_dump), I'm pretty sure this is an OS problem, not a
> BackupPC problem. Since changing the schedule seems to hide the
> problem, I'm going to ignore it for now.
I'm having a similar issue that backuppc rsync runs are very slow
after the upgrade to squeeze.
I've tried a few things:
* swapped the network cable and port on the switch (from a wall socket).
* removing block sizes on rsync transfer
* tried sysctl tweaks in this post:
http://ubuntuforums.org/showthread.php?t=891695
* new kernel 3.2 from squeeze-backports (to see if it's a network card
driver)*
* transferring to a new empty partition and new filesystem (btrfs)
I can manually rsync any server (e.g. my workstation in another
building) and get upwards of 5mbits (network negotiated at 100Mb) but
if I "du -s" a directory being transferred to (e.g a local server on
same switch) by backuppc it doesn't increase by more than
a few 100k each second. There might be compression/hardlink satisfying
the transfer but I'd still expect the directory to grow faster than that.
Not so sure will work but is tempting:
* upgrade to wheezy
The version of backuppc is newer in wheezy but might make it unstable
so would rather work out what's up with squeeze.
I'm stumped. I "feels" like it's something to do with the way rsync is
running. Has anyone had any experience to suggest what might have
changed in the upgrade?
Any advice very much welcome. TIA,
Matt
Relevant setup pasted below:
cmxmb@greedo:~$ lspci
00:00.0 Host bridge: Intel Corporation 5100 Chipset Memory Controller
Hub (rev 90)
00:02.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x8 Port
2-3 (rev 90)
00:03.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port
3 (rev 90)
00:04.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port
4 (rev 90)
00:05.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port
5 (rev 90)
00:06.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x8 Port
6-7 (rev 90)
00:07.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port
7 (rev 90)
00:10.0 Host bridge: Intel Corporation 5100 Chipset FSB Registers (rev 90)
00:10.1 Host bridge: Intel Corporation 5100 Chipset FSB Registers (rev 90)
00:10.2 Host bridge: Intel Corporation 5100 Chipset FSB Registers (rev 90)
00:11.0 Host bridge: Intel Corporation 5100 Chipset Reserved Registers
(rev 90)
00:13.0 Host bridge: Intel Corporation 5100 Chipset Reserved Registers
(rev 90)
00:15.0 Host bridge: Intel Corporation 5100 Chipset DDR Channel 0
Registers (rev 90)
00:16.0 Host bridge: Intel Corporation 5100 Chipset DDR Channel 1
Registers (rev 90)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 1 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 6 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #6 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2
EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface
Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4
port SATA IDE Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port
SATA IDE Controller (rev 02)
01:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5722
Gigabit Ethernet PCI Express
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5722
Gigabit Ethernet PCI Express
03:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS
1078 (rev 04)
09:00.0 PCI bridge: Intel Corporation 6702PXH PCI Express-to-PCI
Bridge A (rev 09)
0b:07.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02)
$ sudo dmidecode -t system
# dmidecode 2.9
SMBIOS 2.5 present.
Handle 0x0100, DMI type 1, 27 bytes
System Information
Manufacturer: Dell Inc.
Product Name: PowerEdge T300
Version: Not Specified
Serial Number: JGBDD4J
UUID: 44454C4C-4700-1042-8044-CAC04F44344A
Wake-up Type: Power Switch
SKU Number: Not Specified
Family: Not Specified
Handle 0x0C00, DMI type 12, 5 bytes
System Configuration Options
Option 1: NVRAM_CLR: Clear user settable NVRAM areas and set defaults
Option 2: PWRD_EN: Close to enable password
Handle 0x2000, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected
$ free
total used free shared buffers cached
Mem: 4055756 3948492 107264 0 309368 2588520
- -/+ buffers/cache: 1050604 3005152
Swap: 1949692 820 1948872
$ uname -a
Linux greedo.ilrt.bris.ac.uk 3.2.0-0.bpo.2-amd64 #1 SMP Mon Apr 23
08:38:01 UTC 2012 x86_64 GNU/Linux
$ df -h /backups
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/volg0-backups
1.8T 1.2T 585G 68% /backups
$ mount |grep backups
/dev/mapper/volg0-backups on /backups type reiserfs
(rw,noexec,nosuid,nodev,noatime,notail)
$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: g
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
$ sudo ethtool -S eth0
NIC statistics:
rx_octets: 28740421868
rx_fragments: 0
rx_ucast_packets: 19000689
rx_mcast_packets: 0
rx_bcast_packets: 14435
rx_fcs_errors: 0
rx_align_errors: 0
rx_xon_pause_rcvd: 0
rx_xoff_pause_rcvd: 0
rx_mac_ctrl_rcvd: 0
rx_xoff_entered: 0
rx_frame_too_long_errors: 0
rx_jabbers: 0
rx_undersize_packets: 0
rx_in_length_errors: 0
rx_out_length_errors: 0
rx_64_or_less_octet_packets: 0
rx_65_to_127_octet_packets: 0
rx_128_to_255_octet_packets: 0
rx_256_to_511_octet_packets: 0
rx_512_to_1023_octet_packets: 0
rx_1024_to_1522_octet_packets: 0
rx_1523_to_2047_octet_packets: 0
rx_2048_to_4095_octet_packets: 0
rx_4096_to_8191_octet_packets: 0
rx_8192_to_9022_octet_packets: 0
tx_octets: 627884470
tx_collisions: 0
tx_xon_sent: 0
tx_xoff_sent: 0
tx_flow_control: 0
tx_mac_errors: 0
tx_single_collisions: 0
tx_mult_collisions: 0
tx_deferred: 0
tx_excessive_collisions: 0
tx_late_collisions: 0
tx_collide_2times: 0
tx_collide_3times: 0
tx_collide_4times: 0
tx_collide_5times: 0
tx_collide_6times: 0
tx_collide_7times: 0
tx_collide_8times: 0
tx_collide_9times: 0
tx_collide_10times: 0
tx_collide_11times: 0
tx_collide_12times: 0
tx_collide_13times: 0
tx_collide_14times: 0
tx_collide_15times: 0
tx_ucast_packets: 9416665
tx_mcast_packets: 8
tx_bcast_packets: 29
tx_carrier_sense_errors: 0
tx_discards: 0
tx_errors: 0
dma_writeq_full: 0
dma_write_prioq_full: 0
rxbds_empty: 0
rx_discards: 0
rx_errors: 0
rx_threshold_hit: 0
dma_readq_full: 0
dma_read_prioq_full: 0
tx_comp_queue_full: 0
ring_set_send_prod_index: 0
ring_status_update: 0
nic_irqs: 0
nic_avoided_irqs: 0
nic_tx_threshold_hit: 0
mbuf_lwm_thresh_hit: 0
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU X3323 @ 2.50GHz
stepping : 10
microcode : 0xa07
cpu MHz : 2500.530
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1
xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips : 5001.06
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU X3323 @ 2.50GHz
stepping : 10
microcode : 0xa07
cpu MHz : 2500.530
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1
xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips : 4999.96
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU X3323 @ 2.50GHz
stepping : 10
microcode : 0xa07
cpu MHz : 2500.530
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1
xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips : 4999.98
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Xeon(R) CPU X3323 @ 2.50GHz
stepping : 10
microcode : 0xa07
cpu MHz : 2500.530
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni
dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1
xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips : 4999.99
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
- --
Matthew Baker :: Senior Systems Administrator :: University of Bristol
+----------------------------------------------------------------------+
| Infrastructure, Systems and Operations it-sysops AT bristol.ac DOT uk |
| T: Berkeley Square: +44(0)117 3314325 (Mon, Thur & Fri) |
| T: Computer Centre: +44(0)117 3317467 (Tue, Wed) |
| A: Uni of Bristol, Computer Centre, Tyndal Ave, Bristol. BS81UD |
+----------------------------------------------------------------------+
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