pigz radio

One, compression(1.1) Use Gzip to package:# time TAR-ZCF Tar1.tar binlog*Real 0m48.497sUser 0m38.371sSYS 0m2.571s(1.2) Use PIGZ compression while setting the maximum compression speed (-1)# Time TAR-CV binlog* | Pigz-1-P 24-k >pigz1.tar.gzReal 0m10.715sUser 0m17.674sSYS 0m1.699s(1.3) Using Pigz compression, the default compression ratio# Time TAR-CV binlog* |

Using tar+lz4/pigz+faster data transfer with SSH -- One-8|Ten: 41 Category: Linux,mysql |The previous article describes how to maximize the transfer speed of the SCP, with this foundation, you can further use compression to speed up the transmission. Using only SCP, the fastest transfer rate is about 90MB, this article will increase the fastest transfer rate to about 250MB by compressing/s (including the decompression process). directory [hide]1. Conc

@openssh.com" 10. xxx. xxx.36 "lz4-d | tar-xC/u01/backup_supu" 3.91GiB 0:00:16 [249MiB/s] real 0m16. 067 s user 0m15. 553 s sys 0m16. 821 s 249 MB/s. It is 6 times the original scp (40 MB/s). It takes about 3 hours for the original GB transmission, and now it takes only 27 minutes. Note 1: lz4's excellent decompression performance makes him very important in this case. If you do not need to decompress the transfer, you can consider using pigz/pbiz2 NO

the original GB transmission, and now it takes only 27 minutes. Note 1: lz4's excellent decompression performance makes him very important in this case. If you do not need to decompress the transfer, you can consider using pigz/pbiz2 NOTE 2: using pv observation, the network traffic is about 80 MB, so replacing ssh with nc does not significantly improve performance. NOTE 3: lz4 adopts-B4 (64 KB) for compression and-B7 (4 MB) for decompression, which

1. Conclusion The maximum transmission performance can be achieved by using the Tar+lz4+ssh method: The code is as follows Copy Code Time Tar-c sendlog/|pv|lz4-b4|ssh-c arcfour128-O "MACs umac-64@openssh.com" 10.xxx.xxx.36 "lz4-d |tar-xc/u01/backup_supu"3.91GiB 0:00:16 [249mib/s]Real 0m16.067sUser 0m15.553sSYS 0m16.821s249mb/s, Duly completed. is 6 times times the original SCP (40MB/S), the original 400GB transmission takes about 3 hours, now it only takes

When using Automysqlbackup to back up MySQL, sometimes you'll see "warning:turning off multicore support, since Pigz" in the mail. This alarm message, why this alarm message?cause of error:Automysqlbackup will compress the dump file when backing up the MySQL database. and multi-processor support. It is compressed with Pigz by default. This means that multicore support is turned on by default.

Keywords: Radio radio button text selection Sometimes when we fill out some forms in a Web page, we may encounter radio buttons, if you choose gender is male or female, at this time the user will often go to click on the radio button that small circle, because the radio but

Select (drop-down) 2. $ ("#select_id"). Prepend ("optionvalue= ' 0 '>Please selectoption> "); Insert an option (first position) 3 for select. $ ("#select_id option:last"). Remove (); Delete the index value in select maximum option (last) 4. $ ("#select_id option[index= ' 0 ']"). Remove (); Delete option (first) 5 with index value 0 in select. $ ("#select_id option[value= ' 3 ']"). Remove (); Delete the Option5 of value= ' 3 ' in select. $ ("#select_id option[text= ' 4 ']"). Remove (); Delete O

One, insert a single radio button 1. Click on the mouse, positioning the cursor in the form frame line, click the "Insert" menu, select the "form" item, in the Pop-up submenu select the "radio button" command. Or select the form item in the Insert panel and click the Radio button icon, as shown in the following illustration: Click on the "Window" m

One, insert a single radio button 1. Click on the mouse, positioning the cursor in the form frame line, click the "Insert" menu, select the "form" item, in the Pop-up submenu select the "radio button" command. Or select the form item in the Insert panel and click the Radio button icon, as shown in the following illustration: Click on the "Window" m

Radio Box: The name value of the radio box is all the samePage has a set of elements of a radio box var radio=document.getelementsbyname ("Radio");var selectvalue=null; Selectvalue the selected value in the radiofor (int i=0;iif (radio