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...function on a subset of the data frame everything works fine but when I reach above 3000 observations R either crash or gives the following error message. Error: cannot allocate vector of size 1125522 Kb In addition: Warning messages: 1: NAs introduced by coercion 2: Reached total allocation of 510Mb: see help(memory.size) I have tried 'help(memory.size)' and increase the 'memory.limit' but without success Can anyone help? Thank you in advance

...00000009e000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001fee9000 (usable) BIOS-e820: 000000001fee9000 - 0000000020000000 (reserved) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) 0MB HIGHMEM available. 510MB LOWMEM available. ================================ - Centos-5.5 BIOS-E820 memory map is: BIOS-e820: 0000000000010000 - 000000000009e000 (usable) BIOS-e820: 000000000009e000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000...

I am getting a series of IOAPIC errors in xl dmesg on a Dell OptiPlex GX100 machine (bought in 2000). I also get an error from traps.c which is very similar to the one in the ''Getting mm.c errors from xl dmesg on certain hardware'' thread. This happens during system startup with no DomUs running. I have attached the xl dmesg log. _______________________________________________

...oss the board. Each Tinc node does have AES-NI. I've also read through/found https://github.com/gsliepen/tinc/issues/110 which is very interesting. The TInc nodes are all on Centos6 AWS EC2 instances as c3.large's w/ EIP's. I've been testing with iperf3 and am able to get around 510Mb/s on the raw network. Over the tun interface/Tinc network, I'm only able to max it out to around 120Mb/s. Anyone have any suggestions on settings or system changes that might be able to assist here? I'm also curious if upgrading to 1.0.31 would help and plan on testing that tomorrow. Ha...

Rsync is efficient at transferring diffs across the wire, but how efficient is it at updating the remote file itself (in terms of disk operations)? If, for example, you have a 500MB file (say an ISO) whose modification consists solely of a few bytes added on to the beginning of the file. Will it create an entirely new 500MB file? Or will it somehow know how to insert the bytes at the beginning

...have > AES-NI. > > I've also read through/found https://github.com/gsliepen/tinc/issues/110 > which is very interesting. > > The TInc nodes are all on Centos6 AWS EC2 instances as c3.large's w/ > EIP's. I've been testing with iperf3 and am able to get around 510Mb/s > on the raw network. Over the tun interface/Tinc network, I'm only able > to max it out to around 120Mb/s. > > Anyone have any suggestions on settings or system changes that might be > able to assist here? I'm also curious if upgrading to 1.0.31 would help > and plan...

...00000009e000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001fee9000 (usable) BIOS-e820: 000000001fee9000 - 0000000020000000 (reserved) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) 0MB HIGHMEM available. 510MB LOWMEM available. Memory for crash kernel (0x0 to 0x0) notwithin permissible range disabling kdump Using x86 segment limits to approximate NX protection DMI not present or invalid. Using APIC driver default ACPI: Unable to locate RSDP Allocating PCI resources starting at 30000000 (gap: 20000000:dff...

...; > > I've also read through/found https://github.com/gsliepen/tinc/issues/110 > > which is very interesting. > > > > The TInc nodes are all on Centos6 AWS EC2 instances as c3.large's w/ > > EIP's. I've been testing with iperf3 and am able to get around 510Mb/s > > on the raw network. Over the tun interface/Tinc network, I'm only able > > to max it out to around 120Mb/s. > > > > Anyone have any suggestions on settings or system changes that might be > > able to assist here? I'm also curious if upgrading to 1.0.31 wo...

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Under Solaris 10 on a 4 core Sun Ultra 40 with 20GB RAM, I am setting up a Sun StorageTek 2540 with 12 300GB 15K RPM SAS drives and connected via load-shared 4Gbit FC links. This week I have tried many different configurations, using firmware managed RAID, ZFS managed RAID, and with the controller cache enabled or disabled. My objective is to obtain the best single-file write performance.